> I have not seen evidence that there will be food system collapse driven by climate change that would be worse than those events

Doing my best to not come off condescending here in case you are being sincere, but the comparison of totalitarian gov crackdowns and local drought are not exactly comparable to an almost worldwide heat increase and less water availability for key high density areas... Once countries have to start hoarding their resources and other countries run out of resources, things will not be good and there's plenty of data, studies and articles out there discussing this that are not hard to find.

If you are being sincere, apologies, but living in the US lately has shown a level of bad actors trying to grift that's made it really difficult to be patient with climate change denial/dismissiveness.