It is perfectly possible to run anti-cheat that are roughly as good (or as bad, as it often turns out) without full admin privilege and running as kernel-level drivers. Coupled with server-side validation, which seems to be a dying breed, you'd also weed out a ton of cheaters while missing the most motivated of them.

As someone who lurks around in different communities (to some extent; Steam forums, reddit, lemmy, mastodon, and a few game-centered discord servers), the issue is not much against anti-cheat for online play. It's the nature of these piece of software that is the issue. It would not be the same if the anti-cheat was also forced on solo gameplay, but it is not the case here.

(bonus points for systems that allow playing on non-protected servers, but that's asking a bit too much from some publishers I suppose)