World Domination Is Imposible

People have tried to take over the world. people like Hitler, places like Germany and Japan. Except they were missing a piece of information that could have saved them some trouble and even their lives. You see (Reminder, this is coming from a 13 year old girl.) they couldn't take over the world because it was already taken over. "By whom?" you might ask. Well it simple, all you need to do is grab a mirror. We the human race have dominated the earth and that is why they failed. Because they were fighting their own species, equally powerful creatures. An animal that has already dominated the earth. The earth cannot be overtaken if it has already been overtaken, none the less by your own kind. It seems utterly ridiculous when you think about it, what they must have done to manipulate themselves to make them so full of it. Do you agree? A really big question, yet no answer.