"All other things equal, having and raising children is a service to society."

[Ban my account ffs!]

Yes.  Society is the natural condition of a social group, or a group of one's fellows.  Nurturing fellows contributes to the fellowship.  I don't think this is controversial because the syllogism is coherent.

Society can be cruel or polite, bad or good, but however fit or unfit it may be, it is propagated by its members, and those who add to its membership are propagating, and therefore serving, the society.

Sehr gut Herr Doktor Professor Angus.