it's Postmodernism and "Multiculturalism".
the belief that all societies are equal, but "whitey" has oppressed the wonderful and glorious "cultures" of other ethnic groups forces the Post-Modern leftist to despise all things european, and venerate all societies which are different from european norms.
thats probably why he converted to judaism.
i doubt it was a matter of faith, but rather a hate for all things european, like christianity.
if he could i suppose he would get melanin injections and facial reconstruction to appear less like a hated honkey, and more like some other ethnic group.
it is self loathing.
and probably an oedipal complex.