You’ll need a military to keep your neighboring countries from taking all your stuff/people/land, and you’ll need some kind of police force to keep those few assholes you have internally from just kidnapping people or stealing everything that isn’t nailed down whatever
As you have pointed out here, the state will always be the enemy of progress, will stand in the way of and disrupt every attempt at creating a more equitable society (which must exist apart from a state, since a state will always trend toward fascism, without exception).
For this reason, most anarchists start practicing our ideals immediately and do not await a revolution. We try to educate people and inform them. We work imperfectly within desperately broken and inequitable systems to introduce more equity and justice.
Want to see an example of this in action? Look up the Zapatistas.