In the real world, communism also suffered from the mandated growth problem, as well as a long list of other issues that some people still like to pretend solely exist under capitalism and some serious problems that are exclusive to this system. Yes, it is actually bad, with and without Cold War propaganda making it sound both worse and better than it actually was. It failed everywhere for a reason.

This doesn't mean that there aren't real issues with capitalism as well. So far, the best system we've come up with as a species is heavily regulated capitalism with strong social safety nets. Not perfect, but nothing is on this rock.