Please don't take this the wrong way, but you should read some anarchist political theory if you want to address their actual beliefs.
This is exactly the kind of communal structure that anarchists advocate for: a voluntary collective where everyone agrees to contribute to furthering certain goals, values, and objectives.
OP is not coercing players to be in their game or to do things their way; they're saying "this is the game that I run, take it or leave it," and the players can join if they share the same goals.