My idealistic younger self would like to believe many people have done so on different issues, but what I've been noticing on the sidelines is that it seems to be working the opposite way: people are reinforcing beliefs and acquiring beliefs they didn't previously have by way of conforming to ideological purity ("you're part of the problem", "if you do X stay away from me") or cynical pragmatism (centrism/compromising as a thing for "cucks").