alt Hacker NewsCatch-22:
Telling them this will make them vote even stronger in the other way. Especially if you call them stupid, selfish, etc.
You have to show them how it impacts eg. the cost of insurance for coastal properties. But even so, this is hard to convey. The people voting aren't feeling it and are told by coastal elites what to care about - changing their opinion in the opposite direction.
Some countries are even going to benefit tremendously from warming, eg. Russia gets more arable land and access to the North Sea, which is fantastic for trade, energy, and defense.
I called them neither of that, I pointed out the infantile nature of their reaction.
Telling people the truth evokes all kinds of weird reactions, that doesn't mean you shouldn't do it.
The preservation of our shared prerequisite for our continued existence isn't accurately captured by financial metrics. Pretending it was is a major error.
You start with protecting "people" (you are included?) against supposed accusations of stupidity, only to then go on and paint them (and yourself) as stupid and unable to judge connections and consequences correctly. And even stoop to pointing at whataboutisms of imaginary upsides.