How did kahane address evil blacks?
Kahane and JDL got started by confronting Jew hating Blacks and Puerto Ricans,especially regarding the NYC teachers strike in the late 1960s, who either politically or physically abused Jews. I was at some later confrontations including one where a big JDL guy tossed a piano on some anti-Semitic Blacks and Puerto Ricans.
Kahane was accused of racism all the time and his very measured answer was that he was not going to overlook the Jew hatred just because the perpetrator was Black. I think that is all that needs to be done and said.
I think that calling Blacks animals and making fun of how they speak is just adding shock value with no upside. Again it comes down to what your goal is. If you want a Howard Stern type following maybe it makes sense. If you aspire to becoming the Prime Minister of Israel and reviving Western Civilization then it only takes away from your seriousness. Could you imagine Reagan, Thatcher, Pope John Paul2 or any serious world leader engaging in that?