A lot of people want this loss to prove that Democrats should have been stronger on Gaza.
A lot of people want this loss to prove that Democrats should have rejected identity politics.
And there's a long tail of other things that people think a Democratic loss will push the Democrats towards: protectionism, isolationism, socialism, etc.
The Democrats are going to lick their wounds, crunch the numbers, and probably move towards Trump on economics. Or something else. 95% of people who are hoping that the Democrats are going to suddenly see the light on their pet issue are going to be disappointed. They aren't going to go hard left on Gaza. They aren't going to go hard right on identity politics. The loss is going to cause a whole bunch of damage, and we're going to get very little if any long-term benefit to weigh against it.
The fact that Houthis have shut down shipping, and the US hasn't stopped them is absolutely shameful.
And by helping its ally more, the war would have ended quicker leaning to overall less death. Which is why a majority of Muslims actually voted for Trump.