“If you had you would know that it does no such thing. It doesnt even mention child sex.”
It doesn’t need to. How can you possibly read a story of a 12 year old involved with a man and think that is a good thing?
It doesn’t claim it’s a good thing.
Not all morality tales are from the positive perspective. You can have a good story about bad people which thus tells it’s not a good thing but tells you that in a good way.
Lolita isn’t about sex with kids being a good thing, it’s about it very much being a bad thing. That’s what makes it a good story.
It isn't supposed to be a good thing.