I do love my children, I don't regret that we had them and would do it again.
However, I fail to see how someone could regard children as the goal of their life.
If the meaning of your life depends on your children, then the meaning of their lives must depend on the meaning of their children, etc. etc.
So in the end the meaning comes from the last generation of humans that will ever exist?
I think one must (try to) find meaning in ones own life.