"We are actively dealing with problems remote learning caused. A whole generation of kids is further behind than they were tracking to be behaviorally, mathematically, and in reading scores."
Gee I wonder what would do that, is it three+ years of unmitigated exposure to a virus that causes brain damage? No, the problem is they stayed home, which makes you developmentally challenged, as we all know. Oh, you don't want to get COVID? Then stay home.
It's not the lockdowns in a bottle, it's how they were implemented. Lockdowns in US education had virtually no support and rules changed so frequently teachers couldn't keep up.
There were also so many people who were "essential workers" who were mostly poor service workers. So many parents had to go to work while their children were mostly unsupervised at online school. I have no doubt China had different plans and implementations.