British Researchers Declare: "Womb Environment Makes Men Gay"

English scientists recently conducted a study that determined that the more older brothers a man has, the more likely he is to be gay. (Biological brothers that is; step-brothers apparently have no significant impact on sexuality.)

Interesting.

No really, studying the biologial roots of sexuality is a pretty hot area of study right now. No issue with that. But what about the giant leap from empiricism to speculation?

"...the effect is probably the result of a "maternal memory" in the womb for male births. A woman's body may see a male foetus as "foreign", he says, prompting an immune reaction which may grow progressively stronger with each male child."

Well, apparently Melanie Klein's babies were completely rational.

It's been said before that scientific theories often say more about the scientist than they do about the science. That being said, what kind of social upbringing did this guy have?