We're dealing with multiple imminent great filters that not only make the ecosystem way less inhabitable but will drastically slow the rate of recovery to where it will sustain diverse life again.
We're already seeing agriculture fail, water supplies dry up, people migrate due to intolerable climate, evacuation of islands due to sea level rise, and so on.
If we succeed in mitigating the crisis and reaching net zero emissions, it'll still be damage control rather than preventing disaster.
A massive population correction is inevitable. Our society, our culture, our way of life will all be radically altered into something unrecognizable. And we may be due for millennia of iron-age life if not a return back to migratory survival.
And that's assuming we survive the next few centuries at all. Our existential risk is no longer insignificant.