Here in the US we'll refuse to interact with someone if we find out that they're part of the wrong tribe, but our political violence is pretty low on the scale of what's possible.

There, they have a lot of political violence and from what I understand quite divisive political issues that put people's lives and livelihoods at stake, but apparently they don't have the culture of avoiding talking about it altogether that we do and they don't attempt to avoid associating with anyone who disagrees with them.