Interesting
The US Constitution assumed all human rights were bestowed to us by our Creator through Natural Law . Where do you believe our rights come from? Beyond this, where do mathematical concepts and ideas exist? They are objective, not physical, nor do they necessarily describe anything physical.
It's funny that no one bothers to ask the same questions about physical health. If someone tries to say that it's healthy to vomit 24 hours a day, we have an objective basis to say that they're wrong. No one stands around and says, "Yeah, it might not be healthy to vomit all day, but where does your health 'come from'"?