That's a bullshit lie and you know it. It's one of those things Republicans say to feel better about themselves. "Smart people have no common sense". Well, the truth is, stupid people have less common sense than anybody.
Really, when I was in recruiting, I personally saw 5 school teachers who couldn't pass the test to get in the military, on the other side I had a 9th grade drop out max it. In fact he was the only one to score in the 99th percentile in my 5.5 years doing the job.
I have personlly worked with engineers that could put a plan to paper but had no idea how to actually build their design. I have a cousin that's a nuclear pharmacist, you get her out of the lab and she's dumb as a rock. Education can only take you so far. So have a nice meal on your BS, I ain't buying it.