Yes, that must be why those countries are all at the very bottom of the ranking in economic freedom, in an annual report whose name escapes me.
Even you must accept the ridiculousness of your statement.
Pure, extreme, unfettered capitalism is anarcho-capitalism. Zero government control of the economy. The capital of violence is owned by individuals. In a free market supported by the Rule of Law, the government has a de jure monopoly on violence and by extension, the courts, police, and military.
The Heritage's Foundation (garlic to our collectivist vampires) Index of Economic Freedom show a clear correlation between economic freedom, political liberty, and per capita income. The higher one is, the higher the others.