I think that we all have certain bedrock beliefs. Abiortion is wrong-vote Trump. Socialism is wrong-vote Trump. And so on. But, I think that same blindspot exists on the left. The left will support someone who is the left version of Trump if that is what it takes to keep "my" bedrock beliefs in place.

I have had this conversation with some friends and their current excuse is that nobody on the left would ever "be that bad".