It's more that they can't do what's necessary, because they can't become a worker party. All of their base and funding comes from the bourgeoisie, they aren't connected with the masses, and even if they tried they would risk severing their real base. The point of the meme is to point out that the Democrats can never be a worker party, so an alternative must be built, like PSL.
I have seen Bernie Sanders and Elizabeth Warren doing protests and stuff.
It is a bit weird how the Republicans can prevent Scotus noms and stuff and the Dems just sit back. I think the Republicans know their base will always go for them and the dirtier the better. I think the Dems are too fragmented both in terms of how to please their voters and in terms of how to get stuff done.
They are doing a lot of these things, the media is just barely covering it. Here's that coverage brought up higher. Could they and should they do more, absolutely and do put directed pressure them to do more, but let's not pretend they are doing nothing. That just creates defeatism instead of the energy we need to keep the pressure up
Handful of the lawsuits that you probably didn't hear about:
And so many more. There are an insane number of lawsuits going on right now
In delay tactics, they could do more, but they have now starting using them. It's more than zero that's for sure. Keep the pressure up here for them to do more. Call your reps to deny unanimous consent more often - it's starting to get through a bit. Here's a few examples
More than hold ping pong paddles with the word false written on them. With the exception of a select few, they're all basically wet blankets. Let's see some civil disobedience, let's see someone getting arrested for standing up for what's right? Best they can do is ping pong paddles?
It's true that politicians don't usually lead, they look to the voting base to see what they can do. I think the issue right now is that there isn't (yet) a unifying leader that can mobilize a big enough population of people to make it impossible for the media to ignore. while I think smaller protests have their place they are useless if they don't move to something bigger. And something bigger - that being millions of people filling the streets of multiple cities - won't happen without a big charismatic leader like Martin Luther King, jr.
Yet the middle of the road, center right democrats that hold power see this as a challenge to their control. They only have to look to how the GOP was hollowed out by a big charismatic leader in trump. The more "moderate" republicans lost control to the more extreme right - the moderate democrats don't want that and will do what they can to hold down that yet unknown person from gaining a voice for the left.