So what's your argument? We all act crazy because crazy people might exist? That's just as crazy as being afraid of terrorists.
Why would you let the crazy people run the world. If they're that crazy you put them in a hospital because clearly they need help
The argument is that if I'm responsible for the safety of a very heterogenous group of people in the cabin of my airplane, I will assume that those people are already stressed and will probably act even less rational than they normally would. And that's all that matters in that moment.
> If they're that crazy you put them in a hospital because clearly they need help
Oh believe me, I would if I could...