The problem with the question is the definition inherently means strict socialism, as defined as a political ideology and economic principle of socioeconomic organization that advocates the means of production, distribution, and exchange of products and services be owned and/or regulated by the community (government) as a whole. The issue with that definition is that is the polar opposite of the economic principles of capitalism. The political ideology of hands off, and the economic principle of ownership being private and reliant on market forces.
Our issue, a harsh reality too, is we have neither one.
We run a mixed economic model, have almost back to the inception of the country. There has always been some degree of government involvement and/or influence and/or regulation of our economy. Moreover, we long ago abandoned the principles of minimal government. Political ideology suggested using the power of governance to some ends.
Social conservatism and frankly oligarchical capitalism are hallmarks of the right, trying to influence economic and social ends (in various ways) are hallmarks of the left.
The irony is when someone in our modern political climate, like Trump, gets up and says "America will never be a socialist country" what he is really talking about is an unwillingness to shift where the power of governance comes down. Said another way, release the ends they want from the power of government doing what modern Republicans want. Republicans are neither free market or self determination thinking, they just want power to go where they want it.
When someone like Sanders or Ocasio-Cortez talk about Democratic Socialism, they are not talking about the ole USSR or Russia (closer to perhaps Sweden or Denmark but I doubt it would align there either.) They are just talking about using power of government to new degrees of economic and social ends. The inverse of Republicans, today's Democrats just want power to go where they want it.
In the meantime, we continue to march towards greater government... from the lot of them.