Every person is three meals away from being radicalized. Not my quote, not sure who it's attributed to, but I've seen it on the internet over the years.

I agree, shit will really hit the fan when people can't find food/water anymore, or at least have it not be readily available. Personally, I think it's coming sooner than people are expecting just because climate change will compound on itself year over year, and we're doing damn near nothing to mitigate any damage (still pumping ground water up like it's an instantly renewable resource to water golf courses in the dessert, for example).

But radical people tend to be desperate for change, and most people get desperate when they start to actually get hungry.