- Blaming specific swaths of voters is pointless and counterproductive.
- Figuring out how to reach them is smart.
- People left of center are saying that the dems aren't doing enough of the latter.
- You (or any of the people insisting that people on the left fall in line with centrist dems) haven't really shown that they are.

What's the plan? Both for this election and afterwards? What vision of the future besides NOT TRUMP is being offered to that huge swath of voters that isn't showing up? The rightwing authoritarian, moderate conservative and liberal voters seem to have a home, who's going to look after the rest?
If the democrats fail to mobilize this part of the electorate, those people are either going to stay home or vote independent, regardless of how many times centrist berate them for "helping Trump".

The system might be rigged, and democrats are only partly to blame for that, but they're fully responsible for their agenda and campaign.