A CR fight would’ve at least been a fight, something the democrats have failed to show for far too long.

And if your house is on fire, shooting a grenade launcher into it would be at least be something. But it won't keep your house from burning down. It obviously would make matters much much worse, in fact.

This would have been a disastrous fight to have, and it wouldn't have had the effect that Democrats imagine it would. They would have strengthened Trump and eventually would have had to accept the exact same CR anyway....which is what happened in every other prior "fight" trying to leverage a shutdown. You're not fighting back against the other party by punching yourself in the face - and the constituents who today are itching for a "fight" are only doing so because they are deluding themselves into thinking that it would have a good outcome. When they lose the fight, they'll feel worse. When the actual outcome ends up happening, and they get the same CR but are in a much worse position, then they will be even more disillusioned for having gone through it.

I completely agree that the Democrats need to regain support among the working class (though I imagine we might have different ideas on what would be an effective strategy for doing that). But the voting down the CR just for the sake of a "fight" would have been a disastrous start to that - much like the antics at the Joint Session, but with far more drastic consequences.