Not really, religion makes rules and people follow them. The point is that, yes, we humans can create “rules”, but the question is who is going to create these rules, who are you going to choose as the rule-maker, and how are you going to make sure that everyone follows this rule because everyone has their own ideas or morals about it? Religion must and will exist. Even today, what we create as “rules” certainly come from religion, or at least are closely linked to it. People and their morals come from religion, there must be some power over people to make these rules. Let me give you an example, I am a human being who forbids eating apples, as another human being, if there is no consequence, why should I obey it? Because according to me or according to my morality there is no harm in eating it. And who is right in this situation? No one. Then who are we supposed to listen to? A power superior to us humans. I hope that answers your questions.