These kind of statements remind me of the "Not everything was bad about Hitler" faction. "Sure he killed millions but think of the highways he built!" Trump is one person, you can't separate his position on policy X from all the other things. You may want to support him because of some specific policy but if you do, you will support all of his policies, there is no way around it.
If trump wins, and doesnt actually do anything remotely as bad as hitler will you feel bad for taking this extremely radical point of view?
In any case the parallels are shocking and I'm far from the only one who has noticed, so I don't think the idea is all that radical to begin with.