I would argue that unemployment isn't solely about "money", but fair enough. I'm not sure how to respond overall. Because every time I debate this topic (which isn't a lot), a Europe defender will basically diminish the importance income numbers. Because "money is a poor measure of being better-off". In fact, money is quite a good measure of being better-off, and there is a lot of evidence for this. Europe has better public transportation, Europe has better healthcare, people are happier in Europe, etc etc... There is always more things. But the original discussion was specifically in the context of labor economics. Whether or not the US has single-player healthcare, that has a different topic. Average self-reported happiness numbers is obviously subjective and influenced by an infinitude of different things that are going on in one's life, which may or may not be related to labor. I also didn't find the other wikipedia articles very convincing. They show that ~2.0% of the US population is living below even the most generous measure of absolute poverty. I only see income inequality numbers as useful insofar as they give to average income number. I had cited median income so that the typical worker could be represented.

I don't consider "who is better off" to be a very good question. The answer is, the average worker is better off. My answer is therefore going to be vague. Of course, there are differences by industry, but do you have a point about that? Also, I am really arguing that with the current state of the USA, immigrants make higher incomes than immigrants to other countries. Saying that immigrants are treated poorly in other ways is just bringing up a political issue unrelated to labor economics.