I once tortured the people around me with a two hour rant, much like this one, when I was eleven years old. I was under the impression that most people grow out of the urge to go off like you just did when they're in their late teens. I was wrong.
You shouldn't go around letting the whole world know how much you hate vampires and demons. I don't think it's possible that you've met every vampire and every demon on the face of this earth. Don't judge. It's wrong.