That's nice that you're able to live close to your son. On the same property counts as close. ;)
I have friends who live in South Africa and you're correct, there's a lot to cry out about. They have to just keep adapting to the circumstances, but the change normally isn't for the good.

how much poop do you have to take to make a decision

Are you asking rhetorically for anyone? Asking or yourself, or asking for me?

For me, it normally takes a a bit. I don't like to just get upset and leave. I like building things and if you don't stick around, you'll have a hard time seeing things grow. That being said, I also try to be aware of the situation and if it's not going to get better, I try to get out before things blow up. How about you?