If it comes to pass the Anthropocene extinction (the 6th planetary extinction) will indeed be our fault. Take comfort in the fact that the planet has recovered from five previous extinctions with new forms of life flourishing on the surface above the fossils of the planet's previous life.

https://www.nationalgeographic.org/lesson/sixth-mass-extinction/

Humans will not be the end of life on the planet. It will recover but likely no humans will be around to see it.

TEK