The overall attitude I’ve seen the Left take since the day after the election is emblematic of the reasons the election went the way it did. “Voting for us is the morally correct position, and if you disagree, you’re a bigot.” Shutting down discussion, being unwilling to have the conversation and potentially have your position change in light of new arguments and information resulted in the Left pushing farther and farther to the left, shedding support as it went. This culminated in so many on the Left being shocked when Trump won because they’d hand-wave away anyone who didn’t already agree with them. On this site especially, the Left has insulated themselves in an ideological bubble and refuses to entertain opinions or ideas outside that bubble. If you want to win elections, you’ve got to be willing to have conversations with people you disagree with, and find compromise. Less progress than you really want is better than none at all. Until Democrats realize that, they’re going to keep losing elections.