At least The Purge movies recognized that the next big American civil conflict is just going to be a massive wave of stochastic terror attacks

Which basically started because the president from The Purge: Election Day ended The Purge, but then the New Founding Fathers just reinstated it after she left office

Then in The Forever Purge, all the freaks and Chuds who liked The Purge decided to just kill people all the time, regardless of laws and they kill a bunch of the New Founding Fathers too for "not doing enough to protect the right to Purge"