"A successful utopian society would most likely be one made up of 1000s of smaller utopias."
This strikes me as the valid mega-target that we should be attempting to reach collectively - space for all.
It should also be the foundational principle for software solutions. And neutral software solutions should also be able to accommodate people who don't want to be in the proposed solution!
That was the original rhetoric behind "Defund" IIRC. Break up the central police force to a rump used to coordinate and regulate police functions that have been devolved to exist under other government departments. Basically a bid to put a domestically-operating military under more thoughtfully-organized civilian control instead of simply having city cops, state cops, and country cops whose only points of oversight come respectively from the mayor, the governor, and the president.
Do not initiate harm. In reverse, do not roll over when someone is initiating harm against you.