There are a number of logical errors and unsupported assumptions in your analysis, but this one is perhaps the most dangerous:

You conflate "Democrats" (i.e. ordinary citizens who agree with the general principles of the Democratic Party (i.e. people who TEND to vote Democratic but who may occasionally select a Republican or independent candidate) with the Party organization / hierarchy itself. Yes, the hierarchy is elitist (hierarchies and organizations tend to support the existence of the organization rather than the needs of its individual members), but I don't see any evidence that most card-carrying Democratic members are themselves elitist. The problem is NOT Democrats or the principles they espouse; it's the fact that the Party leaders are out of touch--not just with ordinary Republicans (and in general conservatives) but with ALL citizens. The organization needs to be reformed; there's nothing wrong with the general principles of the Party or with the beliefs of ordinary Democrats (moderates or liberals).