While that is all true, none of it is a justification for using the word god as a synonym for self evident when it's obvious your audience isn't only the believ

While that is all true, none of it is a justification for using the word god as a synonym for self evident when it's obvious your audience isn't only the believers; it's simply an absurdly poor choice of words if the intent is communication to the widest audience. Saying rights come from god does not communicate the idea that rights are self evident well to anyone but a believer.