Why navies avoid liquid-oxygen torpedo propellants

Why not use liquid oxygen or similar oxidizers in modern heated torpedoes?

The oxidizers are dangerously reactive and difficult to manage aboard a submarine, with the Japanese Long Lance experience illustrating how oxygen makes surrounding materials far easier to ignite.

The proposed oxidizers promise energetic torpedo propulsion, but create difficult handling and storage problems aboard a submarine. The objection to liquid oxygen is that it makes many surrounding materials much easier to burn. Red fuming nitric acid and related proposals are also treated as unattractive to handle. The Japanese Long Lance is invoked as an analogy for the hazards of oxygen-based torpedo systems, without asserting that it used the proposed liquid oxidizer. Performance alone therefore does not settle the choice of propulsion chemistry.