They are just so dumb that words fail. And don’t go on about the education system; these a-holes are old enough to learn for themselves.
A big part of the "education system" is to turn off the idea of learning. They've been indoctrinated to go for instant gratification, always looking for simple answers, and taught never to ask questions, nor to question authority.
Not long ago, I read that the vast majority of people are almost proud to admit they haven't read a single book since leaving school.
Mark