You're completely misrepresenting those books, lying by omission and flat out lying about said books that you've never read
I have read both "This Book Is Gay" and "Gender Queer", both of which have been pushed at young school children
The former has a section "How to argue with Christians" and "How to argue with Muslims", accepts and rationalizes why gay men are so much more promiscuous, tells a story about an underage boy flirting with a married adult man until they had sex on literally the first day he was legal as part of a "these are normal ways to lose your virginity" section, talks about the best wrist action for handjobs, and has a multi-page testimonial on how being HIV positive isn't a big deal:
"As a single guy I was always upfront with guys. I figured if they have a problem with me being HIV positive, it said a hell of a lot more about them than it did about me. I read profiles on dating sites say 'Clean only' and 'HIV negative - you should be too' and all I saw is fear and ignorance."
He goes onto say that HIV made him a better person and gave his life purpose. I'm sure that's the lesson you think sex ed is missing, right? That HIV can give you a purpose in life?
Gender Queer has the infamous illustration of giving a strap-on a blowjob, and the author states the intended audience was 16+ teens and adults. I'm not misrepresenting the book, it's about sex and for adults as stated by its author, and yet its shown up in middle schools.