I have lived in both Europe and US for years. It is not fair to compare both places as the population density is totally different. You still do need a car if you are living in suburb area in Europe (in my case the Netherlands). And in US there is much less people living in the city.
The salary in EU for developers (medium and above) is already lower than developers in big cities (e.g. Beijing, Shenzhen) in China. I guess in the coming years people will try to find job in China for top pay if US is not an option.
NL here. From my previous employer I was making more than 80k euro per year as an engineer, but almost half of the money goes to tax.
So what is the point there? So I quit and work for 3 days per week. Much less money before tax but after tax not really. I feel it is good deal to take 2 days back to life.
So if you want to live in Europe, forget about working for someone else.