You vote for whoever is running from that conservative-enough-but-losing party, and you vote for the Democrat. Period.
IF all of you who claim superiority to the rest of us will admit that you are choosing to vote FOR the Democrat by throwing your vote away, then so be it. YOU have to live with that choice.
But at least be honest about it. You're "we're more conservative than you" attitude, if there are enough of you (which fortunately, there aren't, IMO) is apparently willing to throw America to the wolves!