What you're saying is not necessarily wrong, but it says nothing about the motive of people who decide to have children. I exist, I use technology, I may add something to the world, but none of those reasons have to do with why my parents decided to have me. My parents 100% didn't have me for the explicit purpose of moving humanity forward in any way. They had me because they thought it would fulfill them in some way and I'm 100% sure they did not deliberate about how I would feel about that decision. And I'm 100% sure they did not deliberate about the state of the world or the eventual and natural end of all human life when they decided to have me.
I love my parents though. I just accept that the reason I'm hear had to do 100% with their own personal fulfillment, nothing else.