Rights are not inherent. They are endowed, and you are correct that they can be rescinded. Fortunately, it is not the state but God that does the endowing.
Rights, of course, are violated every day -- just as the 10 Commandments are broken every day. But this means is that those who oppress are in rebellion against God. They act so without authority and will one day have to account for it before an angry God.
Because rights are God-given is why we can say that oppression is evil.
Is slavery evil? Is there a God-given right not to be a slave? Is the right inherent in being human, or is it the result of being born at the right place or the right time?