And I don't agree with that point in general except when someone starts being violent against you, a peaceful resolution is not desirable for long term peace.
Similar to a school bully or when you get in prison and you start getting picked on. Resolving things peacefully with that bully only lets other bullies come after you later on. But harming that one bully effectively ensures your safety long term.
You can disagree with it but Clausewitz is central to modern military doctrine. Analogizing interstate anarchy to bullies is fine but a bit limited; you’re never going to capture IR neorealism that way.
Similar to a school bully or when you get in prison and you start getting picked on. Resolving things peacefully with that bully only lets other bullies come after you later on. But harming that one bully effectively ensures your safety long term.