"We hold these truths to be self-evident, that all men are created equal, that they are endowed by their Creator with certain unalienable Rights, that among these are Life, Liberty and the pursuit of Happiness."
How do you dialog with someone who does not believe in Self evident truth and that people have endowed rights? It is like talking to a blind person about the color "red."
For the sighted a discussion about the color "red" is a discussion grounded in the objectivity of "red" and the faculty of sight. For the blind a discussion about the color "red" is nothing more than an exercise in willful imagination.
For those blind to self-evident truth SSM is nothing more than an exercise of willful imagination not an exercise of an objective self-evident endowed right.