This is so true. I was an an abusive relationship once (a CO-abusive relationship because it was not just him) and my ex was extremely verbally abusive. One night he was screaming at me ":And everyone at work hate you, too!"
But I wasn't working at the time!
It HIT me (like a freight train) that he was shouting at himself! He hated himself and was not just aware of that.
That's how I learned about projection. You are totally right and this is a great article. Thanks :-)