Its almost as if your example involved some Marxist principals at work...
Marx doesn't believe in working for your capital. The state shall provide.
This is false. I also think its pretty telling how your trip to Saigon revealed how much freedom there was. The way you wrote that post made it look like you didn't know you were in a socialist country. You pretty much backed yourself into an endorsement of Marxist values.
Were it not from many of the policies put forth by the Marxist government in Vietnam, people would be too poor to start these small businesses. It turns out, that being able to easily afford the basics (thanks to price controls) frees people up to make the most out of other opportunities.
Right. To say it better, Marx doesn't believe in working for YOUR capital. Marx believes in working for the State's capital. Marx believes that you and your labor belong to the State. No freedom there... which is okay if that is what you want.
Just remember. It's easy to get in, but hard to get out.
Perhaps you should actually read Marx because this quote makes it apparent that you never have. PLEASE PLEASE read Engels or Marx before attributing baseless claims to their work.
"the executive of the modern state is nothing but a committee for managing the common affairs of the whole bourgeoisie."
"Political power, properly so called, is merely the organised power of one class for oppressing another."
"Man, at last the master of his own form of social organization, becomes at the same time the lord over Nature, his own master—free."