Because the guilt ridden self hating white liberals feel better about themselves when they coddle blacks. Same reason they feel the need to coddle homosexuals and Muslims. I call this phenomenon - Babysitting Retards
They feel repelled doing this with Jews because envy of our perceived high prestige. Too much high IQ's, too much talent, too much wealth and G'd's chosen people of the Holy Bible. I mean c'mon look at our priviledge, we're hogging all the good stuff!! lol