B contains mostly lower population areas in the US and Canada, if you go with B you're almost definitely gonna be in Mexico.
A is interesting, you have a good chance of being in the US/Canada or western Europe, but it also contains a fair portion of heavily populated areas in western Africa that might not be ideal.
There are ways in which this could go very well (i.e. your own example) and ways in which this could go very poorly. So it's not an easy decision to make.
You don't mention your wife's opinion on this - what does she think? You should only take on renters if both of you are completely on the same page, otherwise this could cause a major rift in your relationship.
If you do end up thinking more seriously about letting them rent your space, you need to be completely clear about your rules and expectations. Tell them (both your kids and their friends) what will absolutely not be tolerated, and stress that they will be kicked out if they don't follow your rules. And if you're concerned about legal consequences, make sure to consult with a real estate lawyer to write up a rental contract and brief you on relevant local rental laws.
America isn't just a government, or a place, or some undefinable concept. It's people. Roughly 340 million people. Men, women, children, the elderly. Mothers, fathers, sons, daughters, husbands, wives, coworkers, friends.
What happens if society collapses? People lose their livelihoods. They lose their homes. They lose their healthcare. They get sick, hungry, desperate. They suffer. They die.
I know the country is in a bad place right now. But lots of countries have suffered through difficult spells and gradually improved, typically without a societal collapse. Fighting evil with evil - mass suffering and death of countless innocent people - is not the answer.