As somebody living in a country with a strong middle class, I wouldn't want to permanently settle in anything else. It permeates the whole society, the safety, the environment we bring up our children and their values. If you can leave your kids play outside. And so on.

US is a great place in many aspects for top 1%, but progressively crappy as you move down the scale. And even good-earning IT worker is one long-term debilitating illness/accident away from financial catastrophe. Let's not forget completely fucked up US university system.

Overall, when I was young and relatively naive, US seemed a great place to be. Now that I have kids and seen the world a bit, I see it as one of the alternatives (to say Australia and New Zealand, compared to Europe), but with way too many issues, high criminality, us-vs-them mentality. Also the very obvious class system based on income/wealth, we don't have it here so pronounced which I consider much healthier.

One last point - we europeans generally (maybe except for UK) strongly disagree with all wars US is waging in past 30 years or so. Deaths of millions, misery for hundreds of millions for generations to come, pure evil for very little good. There is no way around this if you work in US - your taxes are directly supporting this, everybody a little. We hear a lot about voting with our money - well not living there is also that kind of vote. Passive resistance if you want.