Childbearing v. Childrearing:

Tom Chat of Upword has an excellent post about "Marriage, Childbearing, and Childrearing." Money quote:

Granted, procreation is intrinsically heterosexual (although some homosexual couples do procreate by means of more complex arrangements involving third parties). But childrearing -- which we have said is the provision of love, support, guidance, and resources over a long haul -- does not logically entail heterosexuality.... What I think most people can agree is truly essential is to provide a stable, secure, and loving home. And it is the marriage of two loving committed spouses -- straight or gay -- that is best suited to provide that environment.