No, you don’t understand. It’s important to let people know from a young age that not wanting to have sex and never having sex are okay choices.
I didn’t know asexuality was a thing until I was 19. I went to doctors, I had blood tests and various examinations, I went to therapy.
Hell, I even got very, very drunk when I was in high school, and some dude convinced me to give him a hand job. My therapist told me I had to try things in an attempt to fix myself. Y’know, sort of like a very fucked up immersion therapy. But she was the professional, so I trusted her. So I grab his dick and within a minute I was in tears and literally ran away.
I did a lot of things because everyone from my family to doctors said there must be something wrong with me.
So, yes, it’s also important to let people know that experiencing sexual desire is also okay, and that consensual and healthy sex practices are okay. But don’t ignore asexuality in an attempt to further sex positive movements.
If you can’t think of a better way to explain your sex positive viewpoints than excluding asexuals and other non-sexual people, then you’re not trying hard enough.