It’s not a “work environment”. You can’t report Linus to HR. If you have a problem with him, you can fork the kernel and convince others to follow you. Then you’ll have a mailing list where you can ban Linus for his style. Good luck!
Just because it’s not an official “work environment” per your definition does not mean it isn’t hostile or intolerable were it actually one.
But actually countering that point is a lot harder, isn’t it?
That's a pretty intolerable outright hostile and exclusive judgement :(
And then there would be no Linux kernel. So much for companies.
It feels hostile and intolerable to you.
There are many people who find the risk-averse non-confrontational corpspeak intolerable.