Yes, but those countries are very small compared to America. What works for Sweeden or Denmark would be difficult to enforce here. Think about it. If we tried to emulate one of those Nordic countries, it would go down to the state level. Each state would have a say. So, you'd have true socilism in the blue states and a lot of push back in the red states. IMO, we would see a wave of people moving north. And why not. Free health care. The need to work less. Free college. Do you really think states like Mississippi or Arkansas would follow the socilism route? Do you really think most people there would like to see their taxes raised? Hell no.
I could be wrong. I just don't see it working out, and TBH I doubt socilism will ever make it in America. I tell people all the time, "If you wait for the government to fix your life you are in a world of hurt. It's up to you. No one is going to do it for you." Remember Obama's Change, Hope. Or Trump's Make America Great Again. How has that worked out for the average American? Yet, I met a foreigner last week. He's from Romania. Within a 5 year span he's opened 2 businesses, and is about to open his third. He also works 16 hours a day. People don't want to hear the truth though.