Does your average poor person in America have happiness after 100s of years of relentless technological progress for the benefit of human advancement, and especially today, in the age of becoming spaghettied into the AI event horizon?
Much of Europe is close to the ocean, high in latitude, or mountainous, and climates there are more temperate. You don’t need AC there; AC is a luxury.
Southeast or central US has considerably higher wet bulb temperatures than Europe does in summer. Without HVAC, there’s a good chunk of the year where it’s too hot to get much done.
Eh, don't be silly. In the places where the summer is hot enough (or, more precise, where it used to be hot enough), I have seen plenty of AC units on shabby buildings, even on old Commie apartment blocs in Romania.
Most homeless people have smartphones, and consistent access to food and clean water.
Your average 'poor person' in America has HVAC. An unimaginable luxury in the EU