you say STEM, but you seem to mean almost exclusively computer touchers, already mentioned biologists or variety of engineers won't likely have these problems (i'm not gonna be excessively smug about this because my field will destroy you physically while still being STEM and not particularly glorious)
also it's not a complete jobocalypse, there's still 93% employed fresh CS grads, they might have comparatively shittier jobs, but it's not a disaster (unless picture is actually much bleaker in that that unemployment is, say, concentrated in last 2 years of graduates, but still even in this case it's maybe 10%, 12% tops for the worst affected). unless you mean their unlimited libertarian flavoured greed coming through it, then yeah, it's pretty funny
even then, there's gonna be a funny rebound when these all genai companies implode, partially maybe not in top earner countries, but places like eastern europe or india will fill that openai-sized crater pretty handily, if that mythical outsourcing to ai happened in the first place, that is