It's hard to shake the primal instinct of reproduction and protecting our offspring at all costs, but considering the size of the population and its projected growth I think we need to take a step back and embrace the unique position of our species. We are at a point were we can focus on quality instead of quantity when it comes to human reproduction since we're intelligent enough to understand that all populations reach a carrying capacity so what's the rush to get there?
If we have the intelligence to reach the point where we are rational enough to understand that maybe we don't want to have a child, then I think it's our right to break free from primal instinct. All other species simply follow them because a) they don't know any better and b) most of them aren't rapidly growing dominant creatures that are destroying the planet they live on