Jews promote degeneracy because their nomadic tribe culture relies on exploiting market vacuums of cultures led by idealism. It's how they can weasel into economies and mingle with elites: elites love status, and nothing proves one's status more than getting away with depraved atrocities (see Epstein).
The anti-thesis cannot exist without the thesis; idealism cannot exist without realism, so it begs the question: Which came first: the degenerate, or the Jew?