Not really all that interesting. It's just the https://en.wikipedia.org/wiki/Liberal_paradox wearing the cape of https://en.wikipedia.org/wiki/Solipsism
Without the fancy jargon, the argument is "All people must be free to do whatever they want (the paradox part they don't say out loud is: except form a consensus)"
If you resolve the paradox, what you're left with is exactly the same world we have now: everyone is free to do exactly what they want, including forming a consensus (that may restrict the freedom of the individual)
It's a philosophical sleight of hand that's easy to hide in grandiose and virtuous rhetoric. I've seen it often from the Libertarian Right, and I suspect so have others on Lemmy.
I recommend you check out analytic idealism instead: