There you have the difference between a ranting fanatic and the rest of us. I prefer a word that conveys more dignity, you prefer the term that is more demeaning. More evidence, indeed, that you are not interested in promoting understanding. While "slave" has indeed been the most used word, over the past two centuries, many kindly folks have used the term servant--and indeed, in the Constitutional sense--with reference to the document that you pretend to revere, the terminology was "held to service or labour."
The term "servant" does not define the compensation or social status of the person providing service, it focuses on the function that the person performs. It has dignity, because serving has dignity. You seek to remind others of something else. But do not pretend that "slave" is the essential term for someone held to service. There have been various terms throughout the ages. And applying one that was taken from the forced bondage of slavic peasants, is not particularly applicable to the Old South--however popular its usage.
William Flax Return Of The Gods Web Site