No known gene leads some blacks and some whites to be romantically and sexually attracted to each other. Americans in interracial relationships enjoy every right available to every other citizen. They do so neither because they were “born to” date and marry interracially nor because they chose to do so. They enjoy those protections because they are adult Americans, in Thomas Jefferson’s words, “endowed by their Creator with certain unalienable Rights,” and “among these are Life, Liberty and the pursuit of Happiness.”
Some people choose to change religions. When Connie Chung steps into a synagogue or when Lawrence Kudlow walks into a Catholic church, no government agent ever asks, “Were you born into this faith, or was it a choice?” Instead, converts to Judaism, Catholicism, or no faith at all are free to observe whatever they wish, beneath the protective huppah of the First Amendment.
And what happens if and when scientists isolate the gay gene? YEEE-haw! Just a quick injection, and those same-sex double helices can be hammered into straight lines. What will the “It’s not a choice!” crowd say once that choice becomes widely available on an out-patient basis?