Not at all. Fires are survivable, and the vast majority of aviation fires have ended without total airframe loss. Remember: everybody in a small captive space

Not at all. Fires are survivable, and the vast majority of aviation fires have ended without total airframe loss. Remember: everybody in a small captive space is a firefighter. And the chief firefighters are the people who we call "flight attendants". Their man job is to prevent the scenario you describe; they are nice enough to serve us drinks when that job is not required of them. Flight attendants and air traffic controllers have saved many, many lives in the past century and are barely recognized for it.