principles of decentralization and federation tend to appeal far more to leftists
Absolute load of shit, just like your false dichotomy of capitalism vs communism. Neither affects politics. In fact countries are being destroyed by the same type of people, they don’t give a fuck if they’re playing communism or capitalism today.
… As for why majority of countries are capitalist and not the system that has never been tried, that’s because people always want to outsource decisions to someone else and when the people own means of production, there can be no production, only people inclined to produce do produce.
Classless society is impossible when 80% of people are worthless lackeys and only 20% of people even dream of doing something.