it is, if you're not cheating and is in fact just that good. That's called competitive sports, which participants voluntarily engage in.
People who engage in competitive sports all agree to it. Most people want to play for fun. They have a natural right to do so.
If a community manages a server, it’s basically private property. And community managed servers are always superior to official publisher-managed servers. Anticheat - or just crowd management - is done hands on in the server rather than automated, async, centralized.
Buying the game might mean you have a ”right” to play it, but not on my server you don’t.
I’m talking about normal old fashioned server administration now, I.e people hosting/renting their game infra and doing the administration: making rules, enforcing the rules by kicking and banning, charging fees either for vip status meaning no queuing etc, or even to play at all.