Some people desire sex with children. Some guy in the news a few days ago enjoyed sex with sheep. Some get their jollies from forced sex. Obviously desire can be counter to what is acceptable.
Absolutely true that desire can be counter to what is acceptable. Oral sex was against the law in places, wasn't it? Does that mean that what is unacceptable to some majority is unnatural or has no biological foundation? Homosexuality has a biological foundation, but to what extent differs among individuals! It also has environmental components, but that is subject to individual variation also. As far as whether or not it is "acceptable," homosexuality is not my cup of tea, personally, but I would suggest that (like oral sex) what two people do legally and consentually in private is their business. It doesn't mean the article or the science is flawed because a few lame brains a personally disgusted. Those who criticize homosexuals the most fervently are more likely to be latent homosexuals themselves, or so the old wisdom states.