Well, when you live in huts like cavemen and your population is very spread out, of course you’re going to be less impactful. Shrinking the population WOULD help, no matter how much you scream about eugenics and fascism. Gonna be downvoted for this, but it’s just my opinion at the end of the day. No need to get butthurt, keyboard warriors.

K-40 isnt fissile AFAIK

The bombs aren’t important what makes fallout Fallout is the struggles to rebuild

The whole theme is how nobody wins in war. There can’t really be any rebuilding in south america (which is what you argue for because you live there) because there were no bombs. The interesting technology core to the series like fusion wouldn’t even take place in SA due to lack of american militarism.

Countries not Canada/USA were:

Not bombed during the great war Not in an arms race leading to development of fusion tech They have no power armor, mutants, or recognizable villains No reason to rebuild other than scarcity (excluding europe and middle east)

In an earlier comment you described south/latin america as possibly an NCR trade route. I believe FO4 source code has unused data for a mutant whale, implying the existence of mutated sea creatures. It would take several centuries for the NCR to build a nation large enough to have international trade.