They don't only get perks they also get kits and stuff which is pay2win
You Have A poor understanding of Pay2Win
Pay2Win means that Donors Would have 100% Advantage in beating players that don't have access to that sort of equipment.
There is no server on HHG that is pay2win, because no Kit or item gives a Paid player 100% Advantage over non-donors.
Donors Die All The Time on servers like Kitpvp, Hitman, and Skywars. Kit's only boost players slightly, because Minecraft is a game of skill, strategy, and Timing, There are many non-donor players on leaderboards.