Exactly. If a deity demands worship then it has an ego and is therefore not perfect.
If a deity requires worship to exist (as anthropomorphic personifications tend to), it is not all-powerful and in fact the people control it. Think about it.
Religion isn't a problem. Fanatical religious people are. It's not about what it actually says as much as it is how people interpret it, and that's what causes wars.
oh and 


That's what it says.