I'm really not on board with the "Republicans will rule one day so let's hope they're not crazy when they do" idea. First of all, Republicans... already crazy! I think the new batch of crazies are just more likely to be up front about it and less likely to be well trained in how to speak crazy in code. Second, yes Republicans might rule one day, but the existence of amateur crazy candidates makes that less likely.
As for the fact that Republican voters are crazy...well, that isn't new either. What's new is they've gotten permission from their leaders (Rush, Glenn, Sarah) to stop voting for the establishment.