So how would a 4 yr old boy who insists he's a girl, prefers to play with girl toys and engage in girl activities, when opposed and discouraged by his parents, fit into this model?
What about the intersex children who were surgically assigned and raised as one sex, and later became transgendered?
No, there's something underlying the parental and societal conditioning, such that even if parents cannot condition it INTO a child, they certainly have failed at finding a way to condition it OUT of a child.