You're imposing your values and morality on him, thinking he should reason like you, have a similar rationale.
He doesn't. He knows what he is doing and isn't sick, at least not in that sense. This is all far more dangerous than people realise.
And simply being Jewish doesn't preclude one from being a neo-Nazi, but no, I'm not making the claim that he is nor propagating dur hur Russian propaganda like the stupidity Drunkslee reads on leftist twitter. This situation is all far worse than average dude on his google machine realises.