Even with this caveat, there is a difference in principle that I believe distinguishes the way of life for the less wealthy in the US compared to most of the EU. A big part of US culture seems to be something along the lines of "everyone for themselves", and "paying your own way", which neglects those not blessed with opportunity and seems to encourages larger wealth disparity. I do not believe most of the governments of the EU share this principle, but I welcome counter examples. That said, it's also not black and white: even the US borrows socialist tools to equalise such disparities where it's been proven to work best, such as public schools and libraries.
Because I too can reduce this comparison to a couple of well picked numbers like say per capita GDP or number of companies in top 100 by market cap and conclude that it is EU who should borrow capitalist programs from the US, not the other way around.
But I won’t…
Perhaps write from a place with less "preconceived conclusions" about the other commenters motives next time.
I don't think you have seen how poor people live on either side of the Atlantic and yet you believe being poor in EU is inherently better than in the USA. What is your source of information?
Romania and Bulgaria are part of the EU. Some 25-30 million people in total. Do you think the standards of living are "pretty good" for the non-wealthy Bulgarians?