https://www.drugabuse.gov/related-topics/trends-statistics/o...
https://www.npr.org/sections/health-shots/2017/12/21/5720803...
https://www.theguardian.com/us-news/2017/mar/28/deaths-of-de...
“Is the US facing an epidemic of 'deaths of despair'? These researchers say yes”
Don't get me wrong, I'm very aware that most moral systems have somewhat-principled reasons to prioritize those that are geographically closer to you. This is intended more to illuminate that side of the argument than as a full-fledged suggestion for how to set our priorities. But the claim being discussed here, that the future will wonder why we let people die in the streets, is still bizarre to me in the context that you're framing it in.
You argued that thinking globally is more important than thinking parochially, which is fine by itself. But it's totally unrelated to what toomuchtodo is saying unless we were taking global action in lieu of local action.
So I assumed you meant that, because it's critical to your comment being relevant.
If you didn't mean that, then your argument falls apart. toomuchtodo is not arguing for being parochial, they're arguing that we should be making it a priority to fight this problem at all.
I'll agree with you on the environmental issues, but I think we're well on the way to solving those too and largely via the same mechanisms, Chinese solar is close to pushing coal out of business on price. That's not to say there's no role for regulation in the environmental direction though, I certainly think there probably should be, but how to do so globally and fairly is a bit of a catastrophe.