I'd like to know about your experience in modern academe. I've gone to top-ranked schools in America (UT Austin, Stanford). My experience with the average foreign graduate student is not "top research talent." Most of the time you have a mid-level grifter that wants a green card, a work visa, or something else that simply lets them immigrate here. The work that they produce in exchange for that is low quality. The decline in the quality of graduate degrees may in many ways mirror the issues that tech workers have had with H-1Bs: they were intended to attract high quality talent, but became a corrupt racket.