If Cow & Chicken was real, we would see the faces of their mom and dad.
If Invader Zim was real, he would be captured and sent to Area 51.
If The Snorks were real, I'm sure that thousands (maybe millions) of people would like to be scuba divers in order to dive underwater just to see these fascinating creatures.
If Scooby Doo was real, crime rates would be at an all time low, and some people would try to get Scooby to join the circus, thus renaming him "The Amazing Talking Dog", in order to make money.