I was scrolling through this thread with my hand on my cheek, thinking I'd make a mildly sarcastic remark about how I clicked on this thread for the opportunity to shit down someone's throat, but found myself dismayed and pleased to find nothing to shit on.
Then I got to Hero's post, which goes to show that persistence pays off.
Psych research has generally not supported a significant influence of homosexuality on a child's own sexuality. There is an apparent greater degree of tolerance, however, and if I remember the research correctly, more open-mindedness concerning sexual experimentation. Whatever difference is made doesn't appear to be sensational, however.
Sexuality is a complex trait, and we're only beginning to acknowledge our own construction of sexuality as being false. Examples from the animal kingdom and our own past indicate that occasional homosexual behavior (and, more rarely, exclusive homosexuality)is not some strange modern fad, but a persistent, recurring trait of sexuality. Kinsey's famous scale, though not without its flaws, is a pretty iconic representative of current thinking on sexuality - that is, it operates on a spectrum, and tends to be far more flexible than our "you're gay/you're straight/you're bisexual" attitudes as of late. No research by any reputable academic source supports the theist-espoused idea of "sexuality by choice," and studies have shown that there is some definite genetic correlation (twin studies are magnificently useful).
Since it wouldn't be a post by me if I didn't include an unnecessary ad hominem attack, I'd like to close by implying that Hero votes Republican and listens to Rush Limbaugh.