Unfortunately there are still a few of countries today. Not so long ago there were dozens of them. Their recent history is fairly well documented. You can read it your self how life there was nothing but a struggle with no chance of success unless you or your family belonged to red nobility.

No, there isn't. Socialism literally requires the lack of a state. There hasn't been a single actual attempt at socialism.

State capitalism != socialism.

By that logic we don't really have capitalism and there was never true fascism or national socialism. What a weird relativistic world view.

Nope.

All you need for "Capitalism" is a legal system that will support organizational ownership without requiring employment or labor inputs to the organization