Everybody wanted to. That's how.
There’s a good chance humans won’t exist in, say, 60:to 100 years, with birth rates in many countries declining, or at a minimum, greatly diminished. That’s great news for the rest of life on earth. And I have no apologies for saying this.
And birth rates are accelerating in many, mostly, poorer countries especially Africa. And the people from those countries are headed to the richer countries as Europe and the US. The richer countries are still experiencing a population growth and this kind of growth is not good news.
I'm for AI replacing us. Seriously.