Evolution doesn't work like that. What we have here is a dead end. For whatever reason, this system isn't advantageous from an evolutionary perspective, so we don't reproduce. That's natural selection.
So what we have now is the vast majority of humans being self-selected out of the gene pool by smartphones.
It would be ironic if this was the great filter.
We're going to be so jealous of the robots. They'll have everything and never die.