I hope you're right but I really don't share this optimism. You say that no one is investing in new fossil fuel projects, but is that true?

"China permitted more coal power plants last year than any time in the last seven years..."

https://www.npr.org/2023/03/02/1160441919/china-is-building-six-times-more-new-coal-plants-than-other-countries-report-fin

Natural gas production is still increasing in many countries including the USA:
https://www.eia.gov/todayinenergy/detail.php?id=50978

Habitats are being decimated at an increasing rate (e.g. the amazon) with no end in sight.

If we go all in on robotics, AI, and carbon capture as solutions we're going to need profound amounts of energy and copper, all of which will require profound amounts of mining, habitat destruction and more fossil fuels (mining at the moment is very fossil fuel dependant).

I don't think we have 75 years to turn this around. I think more and more areas will become uninhabitable and incapable of growing crops and sustaining agriculture, whether due to flood, fire, heat or drought, causing more and more refugees and chronic food shortage, causing more wars and fighting for resources (shit gets real when you don't have food).

At some point we will start focusing on short term survival rather than saving the future, because that's all you can do when everything is cascading.