It's really not that complicated though. Our houses easily support air-conditioning, what the hell are you talking about? If anything, our houses are better suited as they are insulated really well. Just cut a damn hole through the wall and install a split unit.

We're just not used to it and until now it was considered a waste of energy. That's it.

The house I live in is cold as fuck by the way. And I don't have an AC unit. I just don't open the doors and windows during daytime. At night I let the cooler air in. I do live in the northern part of Germany though. That may not be viable for you.