I have yet to see a single feasible idea of how bitcoin can be "destroyed". ...
- Find dirt on devs; offer laughably small sums of money to put on jackboots. Alternative: fed time.
- Offer Chinese miners actual IRL money > 12.5 BTC after the halvening to solve blocks.
- Block port 8333 at provider level.
- Be like Russia and Iceland, make BTC illegal.
Maybe you're just not looking?