When I worked in the US for a major airline I was a narrow body FO. With that salary I had what I called a 3-2-1.
I had 3 cars, 2 houses and a country club membership.
I don't think there are any FOs in the world who could do that and very few captains even Widebody captains who could do that.
I have been telling all US pilots that they have to get back to the US as soon as they can not only for the money but also for the conditions.