Why is Elon Musk wrong on F-35 and sort of wrong on unmanned fighters?

This video goes over what Musk said on F-35, stealth jets and unmanned fighters, explaining where Musk was wrong and where he was right. 00:00 Intro 02:32 Musk talks quadcopter drones 04:48 On manned aircraft efficiency 09:55 Fighter vulnerability and stealth 12:32 On the future and the F-35 14:39 Musk wants the F-35 to end