I'm not sure that comparison works, but I'm not trying to derail the thread or get into a pointless back and forth.
I just feel like, outside of neolithic societies, there's few examples of socialism actually working. Marx called the first European socialists utopian, and I tend to think the same of socialism in general. I think it's hard to get past the reality that there's a basic human instinct to promote self interest. Every society needs a power structure, every societal power structure is human, and is therefor subject to corruption and tyranny.
I know, I know...Sweden. To be fair, the book is still unwritten on Nordic socialism; not enough time has passed to use that example to disprove the countless times where socialism has failed.
Like all things, compromise seems to be the best bet. In that sense I agree with a lot of Social Democratic ideas. But technically Marxists view Social Democrats as collaborators with the oppressors, and, therefore, the enemy. I feel like that point gets lost on most neo-Marxists.
There has never been anything close to a socialist society or economy run in the world.
People have used Marxism to wage revolutions but there is always this twisted ideology of massive centralization of industries which goes right against Marx's concept of redistribution.
The best way achieve socialism in a capitalist construct (without a violent revolution) is the socializing of corporations internally and the means of production in totality.