They said your statement was incorrect; either there’s a way to salvage the planet in a habitable form, or there isn’t — but “indistinguishable from magic” doesn’t come into it.

Personally, I think energy is only a portion of the problem space; we need to slow climate change enough that humanity can continue to adapt with it.

After all, we survived multiple ice ages; will the climate destroy our technological advances, or will those advances enable us to adapt to a changing world?

The world is likely highly overpopulated at the present, but we can lose a significant chunk of humanity and still preserve the body of knowledge and many of the technologies that we currently enjoy.

Collapses are inevitable, but total collapse is still avoidable.