My own take is: why do people assume the Democrats are some kind of monocultural political party like the Republicans?
Sure, the Republicans aren’t totally monolithic, but if I take a poll of what people instantly think when they hear “Republican”, they’re going to look pretty similar - largely white, male, evangelical, on average older and wealthier, etc. And they act largely in lockstep, with objectors either falling in line or staying quiet.
The Democrats aren’t nearly as monolithic. There are still some conservative Dems, some progressives, some corporatists, etc. Rather than a single party, it’s really more a loose coalition of 4 or 5 parties. There’s no single strategy, no single leader, and certainly no falling into that non-existent line, and if anybody thinks there’s some mythical ur-Democrat from which they all descend and can find a single leading figure, I’ve got several bridges I’d be willing to sell. I mean, did anybody think AOC and Joe Manchin were remotely on the same strategic page?
For what it’s worth, some are screaming and shouting and doing those sorts of things. But what people actually seem to be asking is one of two questions: (1) why aren’t all the Democrats doing what I personally think they should be doing? and (2) why isn’t any of it getting any traction?
(1) as above
(2) Non-MAGA, non-Republican Americans are just as monolithic as the Democratic Party, i.e. there’s no plurality opinion on what they want other than “not Trump”. And that’s not a cohesive or inspiring message or strategy. What you personally think they should be doing, there’s going to be millions of other “not Trump” people who disagree.
Bit of a problem, and there’s no easy solutions for the issue that the Republican Party as it currently stands, warts and all, actually does represent the opinions of at least a plurality of the American people. That doesn’t speak well of our nation, but why should it?