Are you saying an adopted child, that was not created between the loving man and woman who now raise it, cannot be representative of the love between them? The desire to raise a child with your partner in life is also a result of love, no matter where that child came from. And what about children fathered by sperm donors? There was no loving sexual intercourse involved there, but the mother no doubt desires and loves her baby. By your logic, since these children did not come to their parents through intercourse between their parents, they are unnatural and it is therefore wrong that the practices of adoption and artificial semination ever take place.