I hear you. Though it's a little less stupid to be playing this type of game now - during an essentially uncontested primary - rather than the general election. Factions and interest groups within the party always try to put political pressure on the leaders. It only gets really self-defeating and stupid if they do it at times and in ways that make it harder to win elections. It's always a balance between trying to change where your party's position is and doing something that lets the opposing party take power. Maybe they'll get better perspective when we get to the general.

It will be interesting to see if they're as good at it as Republicans in 2016. Many GOP votes were unhappy with Trump, but were able to recognize that an election is a choice, not an affirmation. Democrats sometimes have trouble with that.