If the parents had a choice to alter their child in any way, shape or form, I wouldn't object to it. If there are no law against it then they can do whatever they want with their child, I do not however enjoy parents making their childs childhood "less enjoyable" as in naming it with rather weird and stupid names etc, but thats another story.
Now, if I take this question on as straight (not a pun or wordplay) as possible I would not agree, advertise or uphold such a medicine as something to fund in any way shape or form, on a personal level that is, but I know that I have no right to implement my insight on others who does not accept them and I don't want to either.
Another thing I seem to have read here is that most people seem to think that some (or any) sort of sexuality is natural/unatural/genetic or not, be it homosexuality, heterosexuality or any other form of sexuality for that matter, But from the studies I've found so far it seems to indicate that no form of sexuality has any valid scientifical data behind it to call it the "right one". At best we get some social, religious, political or one half science half 'hypothesis' statement from some scientists, but so far none of these have been able to validate their assertion on that topic on anything but their own personal view on it.
There is alot of it to read but I think this link gives a small insight upon it for those who might be interested in it.
http://socialinqueery.com/2013/03/18/no-one-is-born-gay-or-straight-here-are-5-reasons-why/
But even this one cannot show the whole picture I'm afraid so please don't take it word for word. And do not take my word on it either, I don't have the qualification to make such a statement either. I just wanted to show another point on this, now sexuality driven discussion.