Depends on what you're defining as socialism, doesn't it?
Universal free education certains sounds like socialism to me.
You think that didn't help make American great?
How about a great road system? That was built by a socialist system
How about the transcontinental railroad. That was built with great help from the government. They gave private companies free land, and then they insured the bonds that those companies sold to finance building it, too.
How about having a military? Isn't that a form of socialism, too?
LOTS of things contibuted to this land becoming great and wealthy.
One of the primary things was our government imposing TARIFFS in manufactured goods coming into this nation, for example. That made it possible for Americ to industrialize.
We got rid of those protections from foreign made goods...how's the economy doing now?