The path to such a future will either be paved with mass extermination to lower to population to remove scarcity or via surviving with government until scarcity is defeated and government can be safely dismantled.

I do agree that there is a root problem with any existing power structure not being truely incentivized to reduce scarcity and then loose power, but that doesn't make the thanos solution more ok.

It's not an either-on. We can still minimize etatism and other forms of organization that require deep hierarchies.

What actions are you taking that could potentially cause billions of individuals to suddenly act as though the concept of scarcity doesn’t exist? If the only path forward you see is for every single human to start acting differently, then you don’t see any path forward.