I know that to be true, but if someone is claiming all enlisted personnel are window lickers the best way to prove them wrong immediately is to focus on the technical skill of the average servicemen.
Yeah infantry tactics aren't for the stupid, not in modern wars at least. Advanced weapon systems and battlefield strategy require someone of reasonable intellect.
We had literally thousands of people going to school for electronics and various maintenance fields at any given time, it's not even close to 0.1%. More like 20-30%.