I could write a book, (and I will after retirement), about the grift of US academia. For brevity I will say that what passes for academic work these days, by volume, is patrimonial garbage. The noise to signal ratio of US graduate content is insane. My supervising professors at "highly regarded" places (like GATech and Purdue, since I like to fart in church) were nothing more than absentee landlords. Total potemkin village dynamics, using the marquee of top end research funding, which is objectively true only at the very top, to peddle rice pudding to the overpaying undergrad masses.