Edit: I should clarify, my 'good for them' comment was about how it's okay for people to have regrets about having children, even though it's culturally taboo. If more people acknowledge this, then perhaps fewer people will take on the burden.
It's not a tie. There is evidence for one side or the other. And in this case, the evidence couldn't possibly be stronger for one particular side.
There is not necessarily an innate drive to make a traditional family. Sex, sure. Most people have a sex drive but what happens afterword need not be familial bliss, or even sticking around to raise the child at all. In fact there a lot of very successful strategies in nature to offload that work to the other parent or even fool unrelated adoptive parents.
Our environment has been drastically changed by birth control.
Previously, a desire for sex was essentially equal to a desire for reproduction. Selection for one would select for the other, so they didn't need to be distinguished.
So essentially we are now unfit for our environment. We will rapidly evolve to fit this new environment. People of the future will desire actual reproduction, not just sex.