"So why is America the world cop? When you answer this question in a realistic fashion, you will understand the riddle."
I don't necessarily see America as the world cop but I take it you do and you think we shouldn't be. So, if not us, then who ? France ? Turkey ? How about North Korea ? China ? Pick one.
We have military forces deployed all over the world. We are everywhere. Why? We are a nation of 1/3 billion folks and the world population is about 50 billion.
Why does America have to take charge? Why does America have to play world cop?