The US is really a unique case even now - so many factors to consider. If I had to guess I would say that the US leads the entrepreneurial space for many reason

The US is really a unique case even now - so many factors to consider. If I had to guess I would say that the US leads the entrepreneurial space for many reasons other than healthcare but that does not mean universal healthcare would make it even more entrepreneurial. More than anything, however, I think those social safety nets would encourage people to consider career changes more (like if they are very dissatisfied with their current one) and job movement between existing businesses.