Even if he does the resulting system is doomed to failure. Socialism works only when you have a population that doesn't know any different. That's not 21st Century America. The neat thing about capital is that it's the fruit, not the tree. Socialism is the other way around, it's the tree, not the fruit. Socialism feeds on other people's money. Capitalism is where that money comes from. Socialism is a luxury that can exist only as long as capitalism is supporting it.
Please send that note to Fidel Castro.