But who says that governments are superior? It makes no sense, it's like saying that a heart is superior to a lung. It's not, you need both!
Governments and markets cover for each others failures. Where a government is inflexible, a market can find an efficient solution. When a market is trapped in a race to the bottom, the government creates coordination. They complement each other.
As for the argument that keeping the current government prevents us from experimenting with alternative forms, you could say the same about free market keeping us from experimenting with different forms of markets...