Not sure what the point of this question is. If what you were supposing had any truth to it, then this is equivalent to wanting humanity to become extinct. I will concede that many people are dim enough that they can't follow through and therefor don't realize that it's equivalent, but there are a minimum number of children that must be born or our species is gone someday (soon).
If you somehow wish to hold the contradictory views that you both are unhappy with and do not want children, and you wish humanity to continue indefinitely, then what this would say is that your some sort of parasite that does not want to contribute your fair share to the continuation of the species. Let someone else do the work, you'll just benefit from it. At minimum, if such people were to be tolerated they must come to understand that they should have little say in policy, especially those policies dealing with the future.