Yes it is though. The issue is they need to galvanise people who are their base *even if they do not realise it*The democratic base clearly isn't enough to win the presidency, the senate, etc.
You will consistently see non-partisan progressive ballot measures do well even in deep red states, the democrats need to stop being such a blatantly establishment party and start providing a strong progressive platform with incredibly popular measures such as universal healthcare.
Not that I’m sure it matters that much now though, I’m bluntly not sure the US will have another election.