Most people who praise communism don't know what communism is, and no, there have been no communist states ever, it's just impossible for such system to exist.

Capitalism and Communism aren't a binary thing but instead something on a spectrum. Both ends of the spectrum are terrible and inhumane. The point is finding a balance.

The US is too capitalist and the UDSSR was too communist.

I think many modern european countries strike a good middle ground.