What free market?
As the US debates “socialism” and “capitalism”, it’s important to remember that government has been a large part of the American economy for generations.
Consider data from the last 70 years of the post-World War 2 American economy:
On any given year between 1947 and 2017, government spending (local + state + federal) comprised between 22% to 41% of total economic output, or GDP.
And over the last half century, government has been a third, or more, of the US economy.
Among the government’s successful pro-growth investments during that time period?
To say nothing of its investments in education (ie healthcare and human capital/education), consider that US government spending in the second half of last century created the infrastructure upon which the entire global economy today is built.