Your premise fails basic logic. Homosexuality is discarded by natural selection by definition - it doesn't end in reproduction.
If homosexuality is discarded by natural selection, why it still exist? Are you assuming a Mendelian inheritance of homosexuality?
"If homosexuality is discarded by natural selection, why it still exist? " I'm sure non-stop promotion in the media helps. Literally every TV show has gay character by the 2nd season.
