Having been raised in Lousiana during the early 50s sans A/C (back then only rich folks had that), yup, it’s hot.
Damned hot.
But somehow, we survived.
And actually had fun.
This is not to say that it’s comfortable, only that humans have survived well in that climate for centuries. They’ll survive now, and will welcome the return of electricity. (Electricity, you know, that stuff invented by...wait for it...those damed European white guys raised in one of the cultures that is equal to all other cultures.)
Back then, Southern housing was ventilated, now it’s insulated.
If the AC goes out your home turns into a sauna.
I spent two years in an open Army barracks with no A/C in Panama..........There was always high humidity but during the rainy season which was from mid March to December, it was off the charts. If you let your boots sit for a week without rotating them, they would be covered in mildew......
When you went to bed in your bunk, you only needed a sheet to cover yourself. we never needed blankets