Not in salary though, given that the salaries in TFA are local to the US, and West European salaries are lower, as a rule (East European salaries, of course, even lower).

OTOH many women may prefer as partner the European man who doesn't work crazy overtime every night, takes 4 weeks of holidays every year with her, uses his months of legally mandated parental leave when they have a baby...

The 6/6/6 dimensions seem to capture very little about what's actually important for the success of a long-term relationship. I guess that's fine, it's presumably a game for 20-year-olds.

What an American makes in absolute terms is irrelevant unless you're planning to move to the US.

And if you're planning to move to the US, then its still irrelevant, because what matters is how much you make in US compared to the cost of living of the US.

Nobody would trade making 40k net in Italy for making 80k net in US, you're actually poorer (and not just financially).

All measures are relative.