"The point" for me would not be spreading my genes. It would be to spread my parenting and resources.
Possibly an easier idea for me because several of my many siblings already have multiple children that could be swapped in to my childhood photos without anyone noticing. My genes are pretty well established.
What point does it defeat and why? I’m assuming that you’re talking about evolution here, where having your own kids rather than taking care of someone else’s have been adaptive, but that’s just like saying that the point of a large rock on a beach is to be so large as to not be swept into sea by the waves.