Some beliefs are critical, but the important part here is that the line is different for everyone. I think a lot of people would support a 'perfect' presidenti

Some beliefs are critical, but the important part here is that the line is different for everyone. I think a lot of people would support a 'perfect' presidential candidate who opposed women's suffrage, simply because they would never get that change through Congress. That's not an idle example, I've heard people say "sure, but Trump's crazy stuff won't pass and I like some of the things he could actually get through Congress." Even the KKK example isn't totally convincing to me. Daryl Davis is the usual example - a black blues singer who got to know Klansmen and tried to talk them out of their positions. He had a hood collection from all his successes, and there's an argument that he effectively broke the Maryland clan. Obviously that doesn't obligate anyone to stay friends with someone in the KKK. You don't need to tolerate things you find abhorrent. But I'm genuinely frightened by the recent push to limit how far it's acceptable to extend tolerance. If someone is consistently pushing back on the ideas you have a problem with (as Davis did), I think it's harmful to demand that they stop associating with the people who hold those ideas.