The finger-pointing by the US about lack of aircon in europe is just a stupid republican talking point. As everything that comes out of republicans these days it's misdirected and purely politically motivated. And it's none of their business anyway. They're just trying to stir up extreme-right sentiment here.

Yes many houses don't have AC. We didn't need it so much until climate change (of which the US is one of the largest contributors no less). But if you move here and care about it just pick a place that has it or where you can install it. It's available if you want it.

It's not a big thing that should be influencing any decision to move. It's just being blown up and politicised because of the current heatwave. Aircon is not prohibited nor frowned upon here, it's just that we didn't really need it so much before and people are still reluctant to invest in it. Especially in the more northern countries it's not really needed anyway, during a heatwave yes but that's a couple weeks a year. Also, it's not a complete solution. Most of us here live outdoor much more, we don't drive cars much so we need to deal with the heat outside anyway.

We also have nice community options like climate shelters here.