[sylware]

They can exploit local priviledge escalation flaws without "RCE".

And you are right, kernel anti-cheat are rumored to be weaponized by hackers, and making the previous even worse.

And when the kid is playing his/her game at home, if daddy or mummy is a person of interest, they are already on the home LAN...

Well, you get the picture: nowhere to run, orders of magnitude worse than it was before.

Nowadays, the only level of protection the administrator/root access rights give you, is to mitigate any user mistake which would break his/her system... sad...