I was born in EU where I got access to all the benefits you're mentioning, such as free health care, free computer engineering BS+MS degree for myself, and social security providing for my aging parents. However, job opportunities as a software engineer there were ridiculously bad, both in terms of quality of work, and compensation (99% of my college mates ended up, and are still, working in mind-numbing boring consultancy shops paying less than an average skilled blue-collar job).
So, as a single, young, healthy and educated person I immigrated to the US, where a massive world of opportunities, not possible in EU, opened up to me. I'm blessed to be earning way more than the EU economy, with all its safety nets, would be able to support. And I'm doing very interesting work.
Once I get tired of this, or if a major health catastrophe happens, I will go back to EU with significant 7 figures savings, and keep enjoying the EU benefits.
All I'm saying is: I have lived in EU for 23 years and in the US for 10, and the opportunities for personal growth that the US provides are simply unseen anywhere else, so don't automatically discount the US system as bad, romanticizing the lifestyle abroad. Every individual has their own dreams and expectations for their lives, so to each their own.