The judge apparently doesn't understand what's constructive criticism and what's just being mean. "You're disgusting, you make me sick"? Really?
And this was the first live show. Yes, the contestant wants to be a famous singer, but he's just an ordinary guy who didn't deserve that.
"What was the name of that cheese that I like?"
"you can't run away forever...but there's nothing wrong with getting a good head start"
"well I hope and I pray, that maybe someday, you'll walk in the room with my heart"