politics in general
related; I think the horseshoe theory of politics is specious bullshit. People are people regardless of political ideology and some of them WILL try to coerce moving in lockstep; centrists, with "clearly we're the rational ones, and you'd be a dangerous idiot to think differently" are no exception.
Although I do suspect that further left and right both feel there's strength in emotional appeal - that at the end of the day, it's better to be someone whose convictions have an emotional resonance beyond high-handed personal intellectual superiority, especially when there's something "real" at stake from self-congradulatory compromise.