Few scientific questions generate as much intrigue and political turmoil as the origins of sexual orientation. Is there a clear genetic or hormonal link to sexual orientation that indicates gay people are, in the words of Lady Gaga, "Born This Way"? Can we ever know if same-sex attraction is determined before birth? Is this a question that should even be asked?
Yes, people are born gay
Various studies have found a direct link between genetics and homosexuality.
Xq28 is the gay gene
Scientists have been able to trace same-sex attraction to a single gene, Xq28.
Homosexuality is a genetic trait that runs throughout generations
Homosexuality is a genetic trait passed from parents to children. The gene continues to spread throughout generations. The extended families of homosexuals tend to have multiple family members attracted to members of the same sex.
We can't choose our sexual orientation because it's genetically inherent
We have a stake in our own development through free will and existential choice. If we can't choose our sexuality, it must be innate rather than developed. Genetics and physical development can't be changed.
To reduce sexual orientation to genetics or hormones reduces it to a binary outcome. Sexuality is not binary, it is fluid and no genetic explanation has been able to accomodate this.
Gay people have fewer offspring because of the genetics they pass on
The laws of evolution dictate that if sexual orientation was genetic, gay people would have died out. The genetics that they carry affects their children. If their children have the same genetics that make them gay, they have far fewer offspring than heterosexuals.
People can't be born "gay" if the word itself is fluid.
The terms "gay", "straight" and "bisexual" don't have clear meanings. People change their sexuality and even "experiment" with relationships outside of their sexual preference. If we can't define the terms, how can we trace their origins?