There are hundreds of identical twin studies which prove it is a learned behavior....always by childhood trauma.
Adults of homosexuals don’t want to admit that they were horrible parents and failed their kids. Either they were molesting the child, allowed some neighbor access to molest the child (Chas Bono’s lesbian babysitter was raping her) or they were fatherless homes where a coach was molesting the boys....etc. etc. I’ve heard it all-—you have to protect the innocence of your kids....when you stick them in daycare or are an unwed mother who has boyfriends traipsing in and out-—it is the children who are destroyed-—their reality is twisted and ruined and normal development which is maturity can not be reached.
Another big thing that parents do now—is undermine the masculinity of little boys which makes them fixate on men instead of females....your sexual identity is formed in childhood and it is essential to feel good about your maleness or femaleness and have proper role models. Peer acceptance is essential too for mature sexual development which will lead to long term attraction of the opposite sex.
Rhesus monkeys who were taken away from normal development situations (their mother) developed all sorts of abnormal aggressive behaviors which included homosexual activity and an inability to form normal sexual connections. It is all environmental behavior.
Homosexuality is caused by child abuse-—that is why it is evil and needs to be discouraged. It should be illegal to promote sodomy in schools.