In principle, he is right autonomous drones are the future, in 20-30 years they will slowly replace fighter aircraft.
Probably GEN 6 fighter planes will be the last of their kind. But then we have another problem, we are creating a system that comes very close to Skynet from Terminator, the software will still attack predetermined targets autonomously on human command, but A.I software/network will coordinate entire swarms of drones in real time satellite-controlled, it will then pull the data from multiple networks such as AWACS aircraft/drones, satellite images + 3D terrain scan + communication and the radar results from carriers and ships and combine all this data and act accordingly. You have to be very careful because AI in 20 years' time will definitely be more autonomous than it is today.