. . . it isn’t. I recently saw this Cicada Killer wasp not far from my feet. Being about 3 or 4 centimeters long it looked rather intimidating. Yet it was minding its own business never mind being aggressive, even not minding much when I very gently put a stick against its legs. A little research revealed that it can be a beneficial insect and is not aggressive.
It left me alone so I left it alone.
EDITED TO ADD: Apparently I neglected to include the photo of said demonic looking creature.