- Perceptions matter. A lot of Americans think it's best here. Those that say how bad it is here, tend to not be the types that would be qualified for EU visas (i.e, you're not going to move to EU on a skilled worker visa if you're an unskilled, unhappy worker in the US)
- Family matters. People leaving family usually emigrate for more money, and US -> EU isn't a more money situation most of the time.
- It's not so easy to just emigrate. You need to be highly qualified or have ancestral ties. If you're highly qualified though, you can probably earn better money in the US. For the wealthy, US is subjectively "better".
I think ultimately it's just a matter of opportunity. If people are generally comfortable with their life, why would they move? They will only do it if a fantastic 10/10 opportunity presents itself; there aren't many 10/10 obvious opportunities to emigrate to Europe for.
I think ultimately it's just a matter of opportunity. If people are generally comfortable with their life, why would they move? They will only do it if a fantastic 10/10 opportunity presents itself; there aren't many 10/10 obvious opportunities to emigrate to Europe for.