CK- that is because they came with many Jews from Russia. Some got mixed in and did fraudulent documents and such. Its not easy to spot who exactly is a real Jew and who is a fake with them. But with the Africans its obviously obvious. Also some of these Russians are partly Jewish (I know one can't be but) they have a Jewish grandfather and such soo under the current Knesset laws and rules they can make Aliyah. That's a big difference to the African's who came illegally to begin with.
Solve the problem's 1 at a time. First the African's, then perhaps the Arabs and then the Russian non-Jews. Perhaps some or many of them can even have easier access (process) to convert as being the seed of Yisrael (even though through father or grandfather).
No easier conversion process if they don't take on all the mitzvot the conversion is pasul.
Seed shmead they are NOT Jews & as far as I am concerned have as much right to be here as the Africans which is not at all.
Now if a Goy wants to go throuh a natrualization process be a ger toshav ie resident alien fine if not they must go the [censored] as well as the schvartzers.
By your logic if a person witha Jewish grandfather who was married to a German woman can also be a citizen.
As I said many times no African called my grandparents Zhid or made pogroms against my grandparents the Russian [censored] did.