I was comparing infertility extinction to a sudden mass extinction like a plague or an asteroid or something.
The reason for considering this at all is not just climate change but all the shit that humans do -- war, corruption, oppression -- what we do to each other and do to other animals. Our species is a very harmful species overall.
I'm actually surprised that half the people even considered such a thing. This is an indication that we are really in a bad place now.
It's sad because all we have to do is decide to do something different and we could easily fix it.