i definitely did learn things in school, and many of my classmates did too. the merit of the harder sciences is almost purely that it’s much harder to pretend that someone is able to build a bridge when they can’t than that they’re making incisive political arguements when they aren’t.
it’s telling though that one of the top stats that gets considered in rankings is “four year graduation rate,” which is more than anything a measure of how clever the school pulls, multiplier by its willingness to help any poor sod through, no matter how little work they do.
personally, I think schools need to add more shame to the process. one of the best courses I ever took, the professor took the first set of essays and flunked all but two people on them. pure theatre but sufficient to demonstrate that weak shit wasn’t going to cut it. the grades were patched over, but that was never the point; anti-grade inflation bonkers are just as off the mark as the pro-grade inflators, they think the grades are the first mover here.