I think it's fair to say that Elizabeth was exceptional for how she handled her position as Queen but the United Kingdom is always just one "King" away from a disastrous ruler and that could get very ugly very fast and potentially for a very long time.
That said, same could happen here and for much the same reasons, which basically comes down to issues of common sense and fealty. If the first is low and the second high the odds of getting caught up in a shit storm are pretty good.