Jews are not the only people that suffer from self hatred and self destructiveness, though arguably they are more prone to it than other groups.
The most spectacular and extreme example of self hatred was the Khmer Rouge, which hated intellectuals and especially foreign educated intellectuals, and proceeded to murder most of them. Since the Khmer Rouge was largely composed of intellectuals and especially foreign educated intellectuals …
Rich white Anglo Saxon males also suffer from a fair degree of self destructive self hatred, as illustrated in the the recent Duke University rape scandal, though nothing comparable to Jewish self hatred.
The roots of self hatred are envy and covetousness. If one belongs to a successful group, one compares oneself to others of that group. Inevitably, some of that group are more successful in some ways than than oneself, and so …