Sadly it’s not “left”. Democrats now consist of two very distinct groups. The “establishment” who want politics as usual and suck on their donors teats. These were the ones that were complaining about people asking them to stand up to Trump, and at this point are part of the problem.
Then There is a much smaller group of “progressives” that consist of AOC, Sanders and a few others. These people are the ones actually interested in fighting for us. The problem is, not only are they getting flack from the right. They’re getting flack from their own party.
Assuming we get another election the only way to even remotely dig ourselves out of this hole is to start primaring the hell out of the establishment candidates.