I think the true nature of the universe, and the world, is much stranger than anything humans are currently able to perceive.
And that rights, as an inalienable thing that all human beings have, are very much a human concept.
You don't see this concept of 'rights' being illustrated in the natural world.
Therefore, they aren't real
They don't exist
Everyone is just making shit up
No one is owed anything
However, I also believe that we should strive to make the world the best possible place for every human living on it, and those with more resources or power have a moral, if not practical, duty to help.