That's known in the business as "bypassing the anti-cheat" and will get you banned the moment the anti-cheat provider notices what you're doing, even if you aren't actually cheating. If you tamper with, sandbox or subvert the AC in any way then they have to assume you're cheating since any signals they get from the AC can no longer be trusted.
Yes, but the more important point is that you are forced into a position of compromise. The only options are for you to accept their malware, or for you to not participate. There is no practical way to convince them to remove their malware requirement.
This is why Microsoft needs to stop signing anticheat drivers or otherwise require them to be sandboxed. AC providers will have to give up if platforms refuse to cooperate with them.
