One of the big problems with communism is that economic prosperity is framed fundamentally as a zero sum game. When that’s a foundational axiom of the system you build you wind up not building systems of growth, only of redistribution. It has rippling effects throughout the culture and the philosophy of a nation that attempts it.
Pro tip: don’t ever tell a Thai cook their food isn’t spicy enough. They take their spice seriously, they take pride in it, and they like to dig it in a little if you ask for it spicier.