Wealthier yes, but better I am not sure. Europe has a much better work life balance (work hours, vacation) and more livable cities. US has lower taxes , is much more entrepreneurial.
I think the bottom 50% is probably better off in Europe, the top 25% better off in the USA and for the the rest depends. I think I can judge this better than most having lived and h sing friends on both sides of the pond and going back frequently.
I think the combo of working in the US and retiring in Europe is hard to beat.
FWIW, most people going to the Worldcup have travelled to the USA before, so I think some of the stories are a bit staged. Europeans know Amerika much better than vice versa.