So this is out there but the late John Keel who investigated UFO's and the paranormal during the 20th century believed that these phenomena aren't even physical

So this is out there but the late John Keel who investigated UFO's and the paranormal during the 20th century believed that these phenomena aren't even physically there. It's some kind of trick that an unknown entity plays on people. Like Bigfoot, lochness monster etc. It's possible the drones don't physically exist. Yet we can see and hear them. The government might know this. Hence lack of response