>Trump is not an expert in air traffic controlling so how is his advice going to fix it?

Just as you don't have to be an oncologist to understand that cancer is bad, you don't have to be an air traffic controller to understand that maybe putting the mentally ill, the psychologically incompetent and the intellectually incapable in charge of air traffic might be bad because they're clearly not experts either, and that's why dozens of bodies are stacking in a morgue right now.