I have racist friends, sexist friends, homophobic friends, but also antifa friends, feminist friends, homosexual friends. I get on with them all just the same... I don't even like labelling them as such because it's weird to categorise them in those terms. I might disagree with them on things, but I don't dislike them or have any negative emotional feelings towards them as people.
If I have an out-group it's probably intolerant people. And again it's not that I dislike them, but I've lost several friends who won't tolerate me defending "intolerant" people. But there's not much I can do about that. I get on with everyone who wants to get on with me.
Being highly tolerant is socially difficult which is probably why more socially-abled people seek groups and are susceptible to group think. How do you get someone who believes women shouldn't have the right to vote to hang out with a feminist? This is an issue I have in my life constantly. Everyone I like hates each other. To some extent our societies probably depend on group think and intolerance – otherwise why form a society at all? Unless your bound by some shared ingroup beliefs forming a society makes no sense. And if you're born into that society if you know what's good for you you'll want to adopt those beliefs!
It would be a weird world if we were highly tolerant, i think... I question if my tolerance is moral often. To be highly moral you probably need to have good intolerances which I'm not capable of. If we were all like me the world would probably be a worse place. I would have been fine with the Nazi's. I disagree with them and I'm glad they lost the war, but I don't hate them enough to fight against their views. I'd rather we try to find a way to all get along.
My inability to form out-groups is why I don't vote anymore because as much as people don't like others, embracing tolerance is probably the only way to ensure people will fight and disagree more.