>Doubt you'll see ACW 2, the American Troubles are coming though.

At the scale that sort of an event will be, quibbling over what constitutes a civil war vs a "troubles" scenario is a deeply flawed argument based only in semantics. An American troubles would be larger, bloodier, and longer than most civil wars in any other country, and would not be the sort of thing that the occupying powers could limp away from like the British were able to do over there.