Jehovah's Witnesses

These people literally brainwash handicapped people. Why would anyone want to keep them around? Perhaps not every member would have to go, but certainly the leadership.

Seriously, that was the same argument Hitler made.

Is that in Mein Kampf? Was he wrong? Why? Perhaps eliminating those Poles was a good step that makes Poland a better country today. (I don't know, but it's probably possible to measure the Hitler effect and see whether Poland is more efficient. That is, it should be possible to provide an objective answer. )

If a member of any of those groups ever hurt some voter for Hitler, I don't blame those people. If there were a political party that would kill every violent asshole the first day after they got elected, I'd give them my vote, but such parties aren't going to exist, because most politicians (and most people) are themselves such assholes.