@YoMomz
You import 1 Jewish immigrant and he is the tie breaker vote for a law that allows unlimited immigration of black African immigrants
You import 1 black African immigrant in & he can not get elected to pass such a law as to allow unlimited other black African immigrants in because he can not get into office to vote without the help of Jew money
Importing 1 Jew immigrant results in a chain event of a lot of black immigrants coming over where as importing 1 black immigrant does not