superstraight

so I was living under a rock till today, and got to know that there's something called superstraight which apparently is a new sexuality according to some people who identify as that , and also they prefer Cis male/female and most of them whom I saw are quite transphobic , they're even trying to bring lgbtq+ into their shit making supergay/lesbian/bi or any other sexuality even trying to be a part of lgbtq+ community and their flag looks like porn hubs logo , also can someone enlighten me how this shit started