There are likely at least a 1,000 species that go extinct every single year, it is what nature does...it all evolves to the new conditions or dies out and is replaced by something more competitive. There is no changing that reality any more than we can control the weather.2nd attempt as my first reply had a "language" issue.
This is what irks me:
‘We have made the planet inhospitable to human life by irreversibly contaminating it now so that nothing is clean anymore. And to the point that’s it’s not clean enough to be safe.’
Human life. Yeah. But what about the rest of the life co-inhabiting this planet with us, every animal, insect, plant life that never benefited from a single human development or technology? We have a tremendous debt to pay to all the other life that we've been sacrificing on the altar of our convenience and the pursuit of an easy life. It's our duty to clean up our messes and invest whatever it takes to prevent more damage.
Or is that unreasonable?
Look at disasters like Chernobyl which certainly contaminated everything around it, yet the next generation of wolves do not show any radiation sickness. They are prosperous and seemingly immune to the high radiation. Nature (which we are part of) always finds a way and to believe that humans can control it or destroy it is folly.