Maybe. Or maybe it would just lead to the formation of political parties and to competitive elections. I think you're projecting modern political culture onto the Federation and its Members. One of the important things to remember about the Federation is that it and its Members have internalized the idea in their mainstream political cultures that violence is the absolute last resort, not an acceptable means for resolving domestic political disputes. They are committed to democratic governance. Further, it seems probable to me that if the Federation ever finds itself with a truly insurmountable cultural difference with one of its Members, that it is far more likely to simply allow that Member to peacefully secede if it holds a popular referendum that decides in secession's favor.