I am not saying that there is not any LGBTQ child predators, I am saying that the tale spun to demonize LGBTQ people as a whole as groomers is just that, a tale with no basis in reality.

For a quick overview on the origins of this myth, this wapo article goes into it, and this study by the NLM shows that there is no increased risk of sexual abuse due to being LGB.

Simply put, the groomer myth is an attempt to demonize LGBTQ people, and it's rhetoric is widely used by people on the right and far right as a way to create some bullshit culture war. It demonizes their opponents, and to creates a moral basis for their otherwise disgusting authoritarian policies while rallying support and making a divide that is impossible to sympathize across.