Anarchism is why governments are created. It's been done to death. The whole world agrees, government is better than Anarchy.
What's rare and proven to be successful is a Constitutional Republic dedicated to defending liberty and serving justice, but it only works when that's what the people want and deserve.
"Freedom, liberty, and their common defense."
The prosperity we could create is nearly unimaginable, but Anarchists aren't interested in prosperity. This is what they're interested in: destruction.