Alright, so on 2014, some ESL /pol/fag (pic related) hypothesized that the majority of homosexuality cases was correlated with a protist called Toxoplasmosis Gondii, the parasite associated with cats. He had some pretty sound logic, and even had citations. It's crazy how much of it actually comes true, like how the gay fashion hosts Youtube shills have sharp jawlines and are toned by default, yet are still disgustingly feminine.
He also claimed that homophobia is a natural reaction and it lines up with that study of straight men's brains lighting up the same way when shown gay guys kissing and maggots writhing.

He even had a cited list.
>http://phenomena.nationalgeographic.com/2014/03/27/sexually-transmitted-virus-sterilises-insects-turns-them-on/
>http://www.ncbi.nlm.nih.gov/pubmed/20816312
>http://www.plosone.org/article/info%3Adoi%2F10.1371%2Fjournal.pone.0023277
>http://newscenter.berkeley.edu/2013/09/18/toxoplasma-infection-permanently-shifts-balance-in-cat-and-mouse-game/
>http://jeb.biologists.org/content/216/1/127.long
>http://www.theguardian.com/science/2006/oct/12/uk.health
>http://en.wikipedia.org/wiki/Toxoplasmosis
>http://www.theguardian.com/science/2006/oct/12/uk.health
>http://www.ncbi.nlm.nih.gov/pubmed/17827351
>http://cargocollective.com/whp/Disgust-Disease
>http://www.ncbi.nlm.nih.gov/pubmed/18347968
This legitimately interests me and I'd like to see how much this holds up.