Some disclaimers
I am a 50+ year old American
Up until 10ish years ago I had at least a better than average understanding/knowledge of WWII
My ex's grandmother's family was from Hiroshima and they had family members killed in the bombing.
All that said as tragic as they were I still think those bombs were the correct military decision at that time. I would be willing to have a rational conversation about it though.
The situation in Gaza is completely different and Lindsey Graham and the rest of the GOP are fucking ghouls.
I don't know if this theory has a proper name but I have seen it multiple times.
If a species has the ability to push their technology to the point they could become a space faring species, that technology will destroy the civilization before it can get there