Rights are causal. The best example is the property right. Without the right, there would be no property.
Things that are moral lead to good (prosperity, joy, ectotropy, life). Things that are not moral lead to that which is not good (starvation, dispair, entropy, death). That is what defines morality. That is how God speaks to us in the way that He designed the universe.
"Might makes right" is the law of nature, the law of the jungle beast.
Civilization provides the tools for the weakest to kill the strongest. "It is our wits that make us men." (Malcolm Wallace from the movie Braveheart.)
Things that are moral lead to good (prosperity, joy, ectotropy, life). Things that are not moral lead to that which is not good (starvation, dispair, entropy, death). That is what defines morality. That is how God speaks to us in the way that He designed the universe.
Morality is rooted entirely in the presupposition some higher power defines what is correct for human behavior.
You made my point...