Define "supporter". Politics is dirty, and often involves doing business with not-nice people in order to achieve goals. That doesn't mean you support them, just tolerate them. I'm not saying this is a good thing, but this how the world works.

It's hardly as if Trump is any different, when you look at his attitude towards Russia, and that's before he's even gotten any political power.

About the only way to avoid this would be to elect an entirely isolationist President who refuses to talk to the outside world, which isn't really an option these days.