Both this thread and just the general actions of McCarthy heading into the votes suggest just a complete misestimation of his Dem colleagues all around, both during the lead up to the possible shutdown, the aftermath and now this vote.
It's like they tried to set traps with the shutdown that didn't really materialize (with exception of maaaybe the fire alarm thing, but even that is questionable)... and then they rolled into yesterday and just assumed they'd get a few people to vote or take a walk without putting in any work at all. And it just backfired on all fronts.
Going out on a limb here, but outside of being a prodigious fundraiser, McCarthy otherwise seems like a really untalented politician... and it has showed.