Your numbers are exaggerated to make a point, but I think it actually changes things. My claim is that the airports are already holding the extra people, compar

Your numbers are exaggerated to make a point, but I think it actually changes things. My claim is that the airports are already holding the extra people, compared to before the wait time increase. They're waiting in line to get through the TSA checkpoint. Getting there early enough to make your flight doesn't change this: you still spend the same amount of time in the line, then go to your gate and board your flight. Unless everyone is abandoning the line and going home since they're going to miss their flight (unlikely).