The concept was formulated by men.
"the enlightened person is freed from any primitive superstitions about some ‘God’ they are free from having to worry about rights."
Wrong. That's simply an empty claim. You are free to engage in defining rights and the morality to protect them, but you will not be excused from violating those rights. They are protected, or ivolated, not by God, but by men.
"Only raw power counts, and humans are just meat puppets for the powerful."
You mean like the devine right of kings placed here by God? Or, the right of any group whatsoever to dictate with authoritarian power? Romans 13 says to obey them, because God put them here. I say that's bogus. We have rights and a moral code which are designed to protect the life and inherent sovereignty of will we were born with. Other men agree. I suppose you will have to resort to raw power to attempt to force our submission.
If “morality” is defined by men, as you say, what has the Bible got to do with it? Why even bring it up? Because you are just one of those pathetic anti-Christians?
Morality is entirely rooted in a presupposition that some higher power defines what is correct for human behavior. It is based on a false premise, esoteric hobgoblins that have no substance.
Anyone who says I am immoral is no different than a preacher or rabbi saying I am a sinner.
You are not going to slap a new label on it hoping (and praying) I will not notice.
You are a blithering moron.