I think the fact that the USSR is not around is evidence that perhaps socialism does not work at scale. If its unable to last how can you consider that working? People in the USSR had a very hard life due to the downfall of socialism. Can you provide me any example of socialism currently that works at scale in a multiethnic country that does not rely on others for military protection?
It’s funny how you are praising China right now despite it’s heavy capitalistic nature. I bet if china collapsed you would say that wasn’t real socialism either.