I'd say, about any beginning of a civil war, or the establishment of a totalitarian/autocratic regime is much like this. It may start in problem space, but it s

I'd say, about any beginning of a civil war, or the establishment of a totalitarian/autocratic regime is much like this. It may start in problem space, but it soon turns into "this problem is that severe that those in command/the other side is not to be trusted, to an extent where it must be excluded from the discussion". From this point onwards, it's just about collecting power and suppression, as it is about a certain partition being (systematically) excluded from the establishment of the general consensus.