For me, Longtermism doesn’t just mean thinking about long term consequences but it implies not caring about today’s problems like climate change and poverty because the needs of the future generations outweigh the needs of our generation. I come from a perspective of “building the new in the shell of the old” and achieving long terms goals that way which is the opposite of Longtermism.
I was about the fully agree with you and still upvoted your comment but their perspective on climate politics is very techno optimistic and actively anti-degrowth and against trying out new ways to organize our society. It’s one thing to focus on technological solutions but they also talk against other ways to solve things. Watch the video in my first comment for a deep dive into it.