> over half of the C++ devs will feel betrayed and quit supporting the Linux project. They've been working on C++ for Decades and things mostly worked, so they won't pivot for a new language and way of developing for something that exists for less than 30 years.

You mean C? C++ has been dead and buried for years and there are 0 kernel devs thinking that C++ will ever be allowed in (that idea was killed in the 00s if I recall correctly).

I don't think the situation is quite as extreme as you're making it out. For example, the employers of Linux kernel devs are getting pressure to use Rust because of the push from within & without the industry. I think push comes to shove, most people have a stronger preference for their paycheck than for the language they work in.