Human suffering ... I don't know how you're measuring this, or projecting it from current state, but 2/3 of the planet are going to be in unimaginably dire straits once regular rainfall patterns change.

I think when we started burning coal in anger, say late 1600's, early 1700's - literally no one contemplated the potential for planet-scale effects, so I don't think that application of the PP applies. I think we're still pretty dumb and full of hubris, but we can contemplate these potential outcomes, and we know of many unintended outcome scenarios, so the PP is much more compelling now.

Charlie's not trying to solve climate change - just drawing attention to why it's not being addressed. Petrochemical exporters are rarely countries, but rather the oligarchs that own the materials. Here in AU we have a tiny handful, f.e. and I expect a similar situation elsewhere - so while the current political administration is nominally democratic, that's effectively irrelevant.

EDIT oh, regarding (3) that you responded to - I'd point out the myriad stats around fossil fuel vs renewables 'jobs', especially graphed over the past decade, and especially in the USA. I think we're now at a time where anyone claiming renewables aren't a better economic option for a society are the ones that need to provide citations.