As someone who lived under communism for most of my life I feel obliged to say that the biggest threat to freedom, democracy, the market economy and prosperity at the beginning of the 21st century is not communism or its various softer variants. Communism was replaced by the threat of ambitious environmentalism.
The largest threat to freedom, democracy, the market economy and prosperity, is no longer socialism. It is, instead, the ambitious, arrogant, unscrupulous ideology of environmentalism.
You cannot have democratic accountability in anything bigger than a nation state.
EU didn't advance our [Eastern Europe] democracy by a single millimeter.