an important factor, I believe, is that a lot of "common people" are childless. about half of Western millennials are, and that was the last generation that didn't grow up in the clown world we live in now. zoomers and forth will be even more so.
I don't know why should a childless person give a damn about the future beyond their own lifespan. I think most of them don't, in their heart of hearts, and that's the only logical stance.
It’s an equally valid (i.e., not valid) observation that most of the people with children obviously don’t give a damn, or we wouldn’t be here.
>I don't know why should a childless person give a damn about the future beyond their own lifespan.
Pretty wild thing to say. I assure you that almost every childless person cares about someone or something, and would like to protect it.
Do you not do any good deeds unless they directly benefit you?
Also, what "most people" think is largely irrelevant when it comes to policy.