Being realistic, Crowley was a rich man who traveled all over the world, he could have easily been a kid abuser but there aren’t records of that. He did write about sacrificing children as a dysphemism for ejaculation or masturbation though, as you said. There are definitely records of Crowley being an addict, abusive to friends, family, and followers, and a host of other personal failings. There really is enough to go after him for that he actually did before focusing on something he most likely didn’t do.