But I would whole-heartedly support a "stop making fucking babies" measure.
And when the last new woman born runs our of eggs, we end up stuck with the existing population and no more humans can be born, ever. As we die due to accidents, the population dwindles to zero. Good riddance to us, I say, for being so stupid!
The old have to make way for the young. Stop desperately grasping hold of the dry, dusty moments of increasingly stretched existence. Step aside and let the next generation have their turn. Upload your consciousness into a computer, and believe the illusion that that's still you in there, if that makes you feel happier, but get your corpse underground you selfish old coot.