As for whether it's a failure, that remains to be seen. Combating climate change is a long-term battle. All of Tesla's products are clearly geared towards this end though, from electric cars to solar roofs to grid level energy storage.
My position is that Musk has focused largely on business that can or do make the world better, and also make a profit. The two are not mutually exclusive and I think the former is a major factor in what Musk selects. Obviously good is determined from Musk's perspective,but I have generally agreed with him with respect to Tesla, spacex, boring, neurolink, solar endeavors, and xprizes.
I don't believe that those up thread were actually claiming Musk will or thinks any of his ventures single handedly will solve climate change. If that was your assumption, I think it was wrong.
I am curious if you agree that his work in these areas is laudable?
I agree that it seems like he is more successful at increasing his fortune than solving the world's problems. I don't hold that against him because the latter is a very tough challenge. I don't hold the fortune against him because it was made from companies that advance humanity, and most of it is tied up in other ventures that also advance humanity. I don't know about the whole Twitter thing, which could be a deviation from this, but I am open to the idea that it could be an improvement over the current state, if not particularly relevant to humanity. I am also open to the idea that he thinks it is more relevant than I do.
People are great at finding ulterior motives for people they've already decided they dislike. I don't think Musk is an altruist, and I'm certain he has multiple motives for the ventures he cares about, but I think it's hard to deny that he's found success where others have struggled, and that his ventures will ultimately benefit humanity.
[0] https://electrek.co/2022/07/07/tesla-tsla-achieves-best-sola...
So, my temptation is to say it's just a publicity stunt. But, I am prepared to praise it if it produces some viable solution, as unlikely as I believe it is.
Musk didn't create Tesla, he bought it. I don't claim to know why he bought it, but here are two options: maybe it was to solve climate change, and if so it was a failure. Maybe it was to make himself immensely wealthy, and if so it was a success.