It's not a shovel he's selling. It's aching to hosting a gallery portraying disgusting crimes done to actual children. Digital or ink, Durov can't just go behind freedom of speech in this matter.
This isn't about Durov or Telegram, it's about "E2EEing everything would give you a free pass not to moderate anything, which seems very naive"
An e2e communication system is just a shovel, or a car, or a saw, or any other tool that does a specific thing for which there is any valid need, which there absolutely is. Thinking that there is any logically valid way around that is what is very naive.