Ludicrous rubbish and junk 'science. The methodologies and claims are laughable jokes. These pedophile apologists are just sick in the head, as usual, hoping to bully anybody who doesn't bow to their promotions of deviancy and sexual fetishes.
Here is the the ongoing examinations of all these fake 'studies' purporting to show homosexuality is 'genetic n stuff'; they are all rubbish, and have been for many decades now.
download the book My Genes Made Me Do It!
Why the hormones in the womb nonsense isn't credible:
Epigenetics and homosexuality
Keep these gimps away from children. Not only are they mentally ill, they're public health menaces as well, major carriers of all kinds of epidemics, and not just venereal diseases, but hepatitis and drug resistant staph and other fun things one gets from mindless self-indulgences of nasty fetishes.