How Can a guy with a college degree be so blind and stupid?
A couple of thoughts on this based upon my experience.
First, half the people who graduate college should have never gone in the first place. During their time at school, they learn virtually nothing — not even how to be responsible adults — and develop no critical thinking skills whatsoever. For them, college was like High School Part II. They would have been better off going into the military.
Second, even if you are a top-notch engineering student, engineering programs do not require students to take courses that would help hone their critical thinking skills. You need to be really good at math, memorize a lot of stuff and be able to solve problems — but none of this really requires critical thinking.