Technically speaking, if someone wanted heterosexual feelings (or even to have some attraction to the opposite sex) in order to raise their own natural family, and they consented and felt it would make them happy by their choice, who are we to judge? Science doesn't deal with morality. If science found a method , would it be wrong for people to consent to using that method ? Ignore the way it is used now and bad cases , i am talking about a potentially useful method , and willing participants?