I think its just a fundamental limitation of sewer socialism or reform socialism or whatever. Especially without the threat of revolution. You can't take on the most powerful reactionary elements because you're playing a game that depends on their cooperation. You can't push them too hard, especially now, because there are far right revolutionary factions out there. So you're stuck going soft on police, stuck downplaying white supremacy, &c.

Revolutionary struggle is much more free to critique the system because it doesn't need to limit itself to bourgeois democracy. Elections can be a tool, but they aren't the only available avenue. Yes the stakes are higher, but so are the rewards.