Wait, people on linux subreddits support kernel-level anti-cheat?
I had the same experience as the parent; opposition to kernel-level anticheat was very unpopular. I think the people on reddit don't understand that in principle, linux could be made to be exactly as bad as any other OS, and that kernel-level anticheat is just one step on the journey there.
IIRC, even Microsoft was getting fed up with hands in the kernel after Cloudstrike so we may see it disappear eventually if Microsoft starts cracking down.