Cows getting bigger.
Using your opinion. Without closing down most air shows. How do you propose avoiding flying over the public? At Farnborough most fast jets and airline displays fly over Aldershot, Farnborough town etc. Unless you are in a light aircraft or F16 etc you cannot restrict aircraft to within the airfield boundary.
Accidents happen, luckily very infrequently.
How about closing Heathrow too? I frequently flew 400t aircraft at low level over the surrounding roads.