Is There an Incentive Embeding the Population Reduction?

Millennials are not having kids in the same numbers and nor will Gen Z. I ask you a question here. Is there an incentive embedded in all this for population reduction? Of course there is. Why do you think the population is reducing everywhere? Americans have the smallest, that's what we need to solve. This is the self-balancing mechanism of humanity because what is about to happen is the exponential age where technology takes over everything. Every lower income job, every middle income job and half the high-end jobs. And poorer countries don't need as many humans to look after family units for income. So that whole equation changes with technology. But technology is going to change a