alt Hacker NewsI 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.