That's entirely subjective for sure. The USA is a continent sized country and not a one-size-fits-all like most European countries. Each state should be viewed as its own European sized country with its own warts and all. You will have some backwater, inbred states like AL, MS and GA but places like CA or New England or NY are just eons above anything Europe has to offer. Again, it's all subjective.
What I'm hearing about CA and NY is 10hr work days if you're lucky, 2/3 jobs to make ends meet if you're not, and absurd rents.
It is true that it is probably better in the US if you're privileged, but then again it's good everywhere if you're privileged. The difference is in the quality of life of the average person.
Healthcare in USA is a nightmare, from almost every perspective.
But a lot of countries like Canada, EU nations and other developed countries (and even in developing nations like India) have free or affordable healthcare systems.
So, at least from a healthcare metric, most of these nations trump USA (pun intended, since Trump scrapped or crippled Obamacare, which itself wasn't a full-fledged solution to the healthcare crisis prevalent in USA).
Most of the countries with free healthcare are dying at the seams. Look at the NHS in England, you can't even get appointments as there are so few doctors. Operations take years to be done. In the USA you get ops real fast and doctors can be seen same day. Obamacare has only reset back to pre-COVID subsidies so it was always temporary the COVID subsidies, per the Inflation Reduction Act 2021.
California and New York are actually among the most inbred states, because they have the largest populations of recent Muslim immigrants, and cousin marriage is more prevalent in the Muslim world than it is in other places: https://en.wikipedia.org/wiki/Cousin_marriage#/media/File:Gl... . There's not all that many Muslims in Alabama or Mississippi; Georgia has somewhat more, probably because of Atlanta's status as a major city that attracts sizeable numbers of immigrants.
Countries like Denmark, Switzerland or Netherlands indeed offer very good quality of life but the language barrier is substantial. Tons of people know English as a second language and almost no one knows, say, Danish as a second language.
> Deal with your mess instead of extending it here.
This is exactly the justification for all the anti-immigration policies, the idea that immigrants from foreign countries have extended the mess that is in their home countries to the United States, and the only way to prevent it is to prevent those people from having the right to settle permanently in the United States.
And there is the fact that countries like Denmark are tightening up immigration even tighter than the US. The EU countries that tried a more open boarder quickly realized how it can spiral out of control.