What I see is not logic reason or common sense from #neverTrump people, I see nothing but irrational emotion. Anger at losing and not giving a dam about the consequences of their actions as long as they can hurt the guy who defeated their guy.
Of course you would see it this way. Its always gonna be about the horse race with you folks. Your guy winning defines you personally, you believe - everyone wants to win. But I see it this way:
* Trump has never demonstrated loyalty to any person, idea, principle, or group but himself. From the Wall to support for Israel to taxes to his supreme court nominees he has qualified or backtracked on every single commitment he has made, rendering his promises meaningless.
* Trump is unable to enthusiastically articulate anything other than how wonderful, successful, etc he is personally, and how defective his detractors are.
* Anytime Trump attempts to speak as a world leader it is painfully obvious he is way out of his depth. His words are obviously not his own.
* Trump clearly is emotionally unequipped for the role of leader of the free world. From his tweets to his intemperate comments at rallies and in interviews he has shown this over and over.
You are invested in Trump now because of what you HOPE he will do. In spite of his history. If he's nominated I'll likely be forced to HOPE some good comes from his candidacy as well. But I'd hardly call that rational.