There is a difference between gorillas and humans.... the
   differences between individual human beings are usually
   predicated on one of 2 things... lack of a common language...
   and profound ignorance, intolerance and arrogance.

   (The OP is valid) Thank you Andy. I want to add something more
   but I can't. I wanted to fold together ignorance, intolerance
   and arrogance into something but it would've required me to use
   metaphors like broken wires, clogged pipes, and other
   metaphorical tricks. You said it perfectly.