Yes. Once a government starts telling people how to conduct their business, where do you draw the line ? You cannot, you've lost the argument, because the first restriction negates the principle. So no, the US is not a free society, strictly speaking, but we are freer than most. There are a lot of us who'd like to improve that percentage of freedom.
If you read "Socialism" you wouldn't have to ask these questions. And no, unfortunately, socialist nations can appear to prosper for a long time before they collapse from their internal contradictions. Why do you think the liberal part of the US population think that Europeans have a better living standard than we do ?
I lived in Norway for a year some years ago, and those who were socialists/communists always said, well, that society didn't implement socialism correctly, but the next socialist experiment will be much better. The problem is, there's no end to this type of utopian statement.