We don't need everyone to agree or for everyone to get smarter in order for anarcho-capitalism to become the dominant way of life for most people.

IMO it's much more of a technological problem. It is currently very easy for a few people to steal from billions. But that can't be done without also weakening their tool of theft. A sound money that is easy to secure, hard or impossible to censor, which will forever grow stronger as other currencies are devalued changes some very fundamental incentives.

The current system is also built on a mountain of lies & fraud which could only be maintained via controlled communications channels. When our better money is combined with decentralized communication & trade networks that are similarly difficult to censor, much of what makes these massive govts possible will be gone.