The problem with this analogy is that not marrying either of the options isn't a choice. Someone IS going to be elected president, and either you choose to participate in that decision or you don't. Either way, you're gonna be married.
What will it take to make the Republican Party understand we don't want any more RINOs, short of losing an election? We seem to have tried everything else and it doesn't seem to be working.
As long as we'll keep holding our noses and voting for whoever they give us, they don't have any incentive to change. As long as it keeps working, they're going to keep doing it.