I gave over this 18 years ago:
The recent riots in Crown Heights, Los Angeles and elsewhere bring to mind the meaning of the name of Noah's son Ham: from the Hebrew word "cham" - heat. Although the least of his brothers, to have been worthy of being saved from the Flood, Ham must have been a very great man, and his name foretold of his destined derech in serving the Creator: "through the heat of emotional passion and excitement" (R.S.R.Hirsch).
But already in the Ark, by having prohibited relations with his wife, he was found to be wanting in comparison to his brothers: the heat intended for Avodas Hashem had become warped into the incandescent heat of degenerate licentiousness. The Tanchumah relates of the physical punishment he underwent as a result of this and his subsequent performing of an atrocity on father: his skin became pigmented, his eyes bloodshot, his lips thick, fuzzy hair, and to walk denuded: all traits passed on to his offspring.
Some identify Ham with the famous ancient leader Hammu-rabi, which means "Master of the Family of Ham". Ham's grandson, Nimrod, taught his brothers extreme aggressiveness, and they subjugated the entire population into building the Tower of Babel. Amazingly, the Hashgochah ordained that another of Ham's sons, Canaan, was the only nation to retain the usage of Loshon Hakodesh after the division of the languages, in order to be able to serve the Bnei Yisroel hundreds of years later, who also retained the original tongue.
"Accursed is Canaan: a slave of slaves will he be to his brothers" (Breishis 9). In order to remedy Ham's evil character traits, which were greatly accentuated in the immoral Canaan, Noah actually blessed him that he should come under the influence and servitude of others that are better than him. Many Canaanites profited greatly by reason of this servitude eg. Eliezer the slave of Abraham, Tabi the slave of Rabban Gamaliel, the maidservant of R.Yehudah Hanasi etc. Canaanite slaves were all circumcised, being called "sons of the covenant", and obeyed Torah laws, many of them thereby gaining Olam Habo.
It is when Ham's descendants are free to gratify their negative traits, that they do harm to others, and even more to themselves, as recent events have shown. Hashem's plan is to put the most virtuous of the seed of Shem, together with the least virtuous of the seed of Ham, in order to serve as a moshel to mankind in highlighting the great moral difference between them, and also so that they can be of mutual help to each other.
Indeed the Kabbalists say that "the Land of Israel was only given in order that the Jews should cleanse and sublimate out of it the seven bad midos (viz.anger, greed, envy, impatience, impudence, indolence, and lust) that originate from the seven original Canaanite nations that dwelt there, that derive their vivification from the Olam Hatohu". This helps to explain the very "agitato" atmosphere of Israel to this day, as all these traits are accentuated there more than in any other land: "A person who lives in Eretz Yisroel must never forget its original name, Eretz Canaan, which means "servitude and submission": hachna'ah (Shlah Hakadosh). "The air of the Land of Israel makes one cleverer (Bava Basra 158) - but remember that the Yetzer Hara is also cleverer in Israel!" (Satmar Rebbe).
At the time of Joshua's invasion, many of the Cannaanites, such as the Girgashites, fled into Africa (Sanhedrin 91) as archaeology has confirmed. "Shem took Asia, Jafeth took Europe, and Ham took Africa" (Abarbanel). Canaan's last will and testament to his descendants was "Love one another, love robbery, love lewdness, hate your masters, and do not speak the truth" (Pesachim 113) - unfortunately the subsequent behaviour of the Hamitics has largely borne this out! The Sinites (Breishis 10:17) are the progenitors of the nations of the Far East ie.the Sino-Japanese peoples. Those elitist countries would undoubtedly be rather non-plussed if they realised the ramifications of the common Hamitic lineage that they share with their other more pigmented "mishpochah"! - see "Universal Jewish History" by Philip Biberfeld, ch.5.
Although the negroidal Ethiopian Falashas have many admirable qualities, there are so many halachic doubts as to their status as bona fide Jews, that geirus al pi halachah is a sine qua non for them to be accepted as yidden, as recent responsa by gedolim has shown. The fact that most of them categorically refuse to undergo t'vilah and dam bris, is a sure sign that many of them are not in possession of Jewish neshomos: "Can the Ethiopian change his skin, or the leopard its spots?" (Jeremiah 13).
Kedushah "attracts" Kelippah, as can still be seen today by the Hamites who somehow always end up "clinging" to the Am Yisroel, willy-nilly eg. the Palestinians (who are basically Canaanitic Plishtim!) in Israel, and the Blacks in the USA and UK. In ancient Babylon, Chazal were amazed how the gentiles of Masa Mechasya witnessed the glory of the Torah, and yet none of them converted to Judaism (Brochos 17).
And today? Yet they can be positively influenced eg. the Chabad Drug Outreach Program works hand in hand with moderate Black Muslims in New York to fight rampant drug abuse, with some success, in a brave attempt to forestall the occurrence of another Crown Heights-like pogrom. It has been found that in those US states where Creation Science is compulsorily taught side by side as an alternative to the Theory of Evolution, Black high school students turn out to become the most enthusiastic believers in the Creator, and models of good behaviour!
A pure Negro is meant to be a proud representative of his branch of mankind. But the grand attempt by misguided "social engineers" in the West to overly miscegenate the races, has resulted in a burgeoning generation of perplexed and vexed "chip-on-the-shoulder" dysgenic, Caucasoid-Negroidal-Melanesian-Indian-Amerindian-Australoid-Polynesian-Mestizo-Mulatto-Mongoloid coffee cream-mocca coloured untermischungs, with undesirable future social repurcussions, lo aleinu. Dysgenics is the gradual running down in the calibre of the human genetic pool, due to racengemisch (race-mixing) and other effects. Hashem delights in the converse of dysgenics: eugenics viz.the encouraging of the breeding of real men and real women (Bechoros 45), and the vital preservation of the separate and distinct races which He has created. "Each of the 70 Nations has a unique national trait at which it excels, and which can be harnessed for kedushah" (R.David Feinstein).
All men have immortal souls. The Tzelem Elokim latent in all of mankind's branches is meant to be accentuated, contrary to the fallacious Theory of Evolution. This evil theory propounds that "the broad flat nose, the slanted profile of the Negro face, and their smaller average skull capacity, places them closer to the anthropoid apes than to homo sapiens" (Major Leonard Darwin, son of Charles Darwin). Evolution has spawned modern racism.: "No rational man believes that the negro is the equal, still less the superior of the white man" (T.H.Huxley, Darwin's main disciple and an arch-evolutionist). The Torah-believing Jew has a higher opinion of many Hamitics than they have of themselves!
History has repeatedly shown of the trouble caused by peoples misplaced from their lands. The Creator has put into the heart of every man an inherent love for his intended habitat (B.Rabboh 34), and elsewhere the benign influence of the Supernal Sar (Angelic Guardian) of that land will be lost on that individual. The ancient world dictator Sennacherib was another one who attempted to unhinge this delicate spiritual order by a deliberate policy of dysgenics and racegemisch. Only the Am Yisroel are the exceptions to this rule, as they have a different Divine destiny, to be temporarily dispersed among the nations, where they become assets to their host nation, not liabilities like most other minorities: "And the L-rd will scatter you from one end of the earth to the other" (Dvarim 28).
Attempts to over miscegenate the races has resulted in the opposite of the desired result: "Once a certain limit is reached, a change to the opposite direction is inevitable". By the world ignoring the Torah's teachings on the origin, nature and destiny of the races in the Table of the Nations, the present racial balance is on a potentially disastrous knife-edge. Many now believe that "the South will arise again" and that one day they'll be whistling "Dixie" north of the Mason-Dixon line, with all that that would entail!