I don't know what world you're living in but software development has always been a cut throat business. I've never seen true mentoring. Maybe a code review where some a-hole of a "senior" developer would come in having just read "clean code" and use some stupid stylistic preferences as a cudgel and go to town on the juniors. I'm cynical enough to believe that this, "AI is going to take your programming job!" is just a ploy to thin out the applicant pool.
Wow, you must have worked in some REALLY toxic places. I had one toxic senior teammate when I first started out - he mocked me when I was having trouble with some of the dev environment he had created - but he got fired shortly thereafter for being bad at his job.
Everybody else through my 21-year career has almost universally either been helpful or neutral (mostly just busy). If you think code reviews are just for bikeshedding about style minutia, then you're really missing out. I personally have found it extremely rewarding to invest in junior SWEs and see them progress in their careers.
Sure have. Finance, research labs, government contracting. Can't wait for people to chime in with their horror stories. I've seen some of the most dysfunctional crap you can imagine.
Toxicity is spread out and touching most of the industry. Is it fully toxic? Absolutely not. But I found some level of toxicity everywhere I worked for the past 20+ years in this industry.
Seriously. I guess I wouldn’t describe it as a “cut throat” thing, but absolutely nobody in 20 years of working has ever given a shit. The idea of being “mentored” is ridiculous. It doesn’t happen.