Nobody likes cheating.

However, a lot of people don't like anti-cheat mechanisms that are essentially rootkits, and especially nobody likes when a product is changed long after it's release in a way that makes it unusable (as the new anti-cheat forbids Linux).

No one decided cheating in multiplayer games is fine. But invasive anti-cheat software is significantly worse, and frankly doesn't actually work. Automated detection tools can help, but ultimately you need mods / admins to properly stay on top of cheating. Trying to replace those jobs with incredibly invasive software installed on every user's device is just a sign of a trash developer or publisher.

Since they shut out Linux players last week. Taking away access to things someone bought, used and can't use anymore because of something the supplier did could be interpreted as theft.

When it stopped people from being able to even play a game they paid for. In case it wasn't clear, this breaks the game completely for non-cheating Linux users.

People are against invasive kernel-level that spies on them and prevent them from playing games on their OS that would otherwise run fine.

No one here has decided that cheating in online games is fine or okay.