It's called being an idiot.
Idiot is an inaccurate statement and unacceptable for use.
The word idiot comes from two Greek words which mean "out of mind."
It has become a commonplace expression in our more recent culture on the planet.
Apparently, it was also considered an unacceptable practice when condemned by the Nazarene about 2 millenium previous warning of a very severe penalty for those who wish to call their fellow human beings such terms.