The national socialist workers party (Nazi) implemented many socialist policies prior to ww2
Then there were the soviet union,again with socialist policies.
It was the move away from capitalism like Venezuela has done recently that caused the problems.
The socialists in charge always develop national pride and run out of wealth. They then look for a scape goat whether internal such as south Africa today or external which can lead to war.
However a socialist country tries to manage its inevitable collapse,far more seek to leave then enter.
Too many refugees is a problem for a successful capitalist society. Not a socialist one.
If you learnt the lessons of the national socialist workers party or any socialist party, you would loathe the idea of state control over all assets.
The government is already big, powerful,corrupt and hapless. Why would anyone want to make it larger by give the government all private property as well?