Historically, 10% of all Blue Angels have died in crashes. That is way too many for me to feel OK about viewing their air shows as a form of entertainment. Navy pilots are too valuable to waste this way.
The Blue Angels, like the Air Force and the Marines, don't fly for entertainment. Entertainment is just a bonus for the millions of civilians who enjoy watching their skill.
I suppose in a sterile world, they should only be allowed to fly when in actual combat.
That would work just great.