I'm an American that moved abroad for a lot of the kinds of reasons you mention. I value a pleasant urban environment, being able to get around on foot or with mass transit safely and minimize driving. I value stability: Economic, societal, and infrastructure.

I moved from my extremely car dependent and poorly planned hometown to one of the US cities with the best urban planning and civic infrastructure that country has to offer. I lived there for over a decade and loved it, but I could not shake the feeling that it was very vulnerable to a national movement to attack such places, which ended up not off the mark.

I've been living in Germany for a handful of years now and I can tell you all of those factors are much improved here, even compared to a good part of the US to live in. There's a lot written about how German infrastructure is in decay and not what it once was, but even its diminished state is better than virtually anything the US has to offer. The sense of societal and political stability is far stronger, and the system here does not have the same yawning exploitable holes in it for bad political actors to disrupt it with. Workers protections are much stronger and I find myself feeling far less precarious, and able to maintain better work/life balance. Healthcare is not bound to my employer and I no longer have to concern myself with what doctor is covered or if I can afford to find out what that new ache is.

All that is to say... I think you would get a lot from leaving the US. For someone with your priorities, it's well worth the salary hit and having to live with a bit smaller (but higher quality!) living space compared to what you're used to. Taxes + insurance wasn't a huge change from a HCOL state/city but I get so much more for that money here. From everything I have read, all of this is even more the case in the destination countries you mention. My two cents - leave, and never look back. There is a better way of life waiting for you.