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Escaping from one gravity well to go to another gravity well that is far more deadly is foolish. Both Mars and the Moon, as well as probably any body that doesn't have some sort of erosion mechanic, has fine, sharp dust which is terrible on both equipment and biology.
I still am a believer just as I was a 70s kid that O'Neill was on the right track, and space is the next logical place for humanity. What has changed over the decades is my belief that we can get there. Not because of the science or the technology, but because of our tendency to focus resources on other things that don't help anyone. The window is all but shut on space now. And any billionaires that send people to Mars in some grand colonization scheme are just dooming them and wasting more on their own ego.
So whatever happens now, humanity will have its eggs in one basket, and that basket does have an expiration date.
What would take for thar window to re-open?