While I disagree with where you arrive I applaud your question. Looking at China I think would be misguided, the idea that China is unified by any measure is a great misunderstanding of what is actually going on there. It seems like we keep wanting to point to Venezuela as a great place for order and seem to overlook that it is an incredibly dangerous and corrupt place. If you talk to any Cuban I think you'll be hard-pressed to find someone who believes the country is being run affectively.
In many ways you confuse ease with effectiveness. Yes, it is easier to run a country with a so