In my experience it comes down to two things most of the time -not be in congress in the first place? that seems to be the only thing they whine about with her.
1) some nebulous complaint that if the democrats just ‘got tough’ or ‘reached across the aisle’ or whatever then things would be better. These almost never come with specific actions they should take and if they do the outcome is often some fantasy.
2) people say democrats should do something they are already doing.
I’m sure there are things the democrats could do better but the primary impediment to progress at this time is the fact that the republicans can effectively stop any government action even if they consistently lose the vote by around 7-10 points. This means they can take very unpopular positions and still get their way and they are very aware of this. Hence, why they have no problem taking very unpopular positions like blocking stimulus.

