"start using the 'n' word more. It just means black person."
Uh, no. Direct racial epithets aren't the same thing as the use of the term 'master' and/or 'slave' with respect to one another in a technical context.
[but maybe you made a good point anyway, in a backwards kind of way - 'master' and 'slave' aren't racial epithets unless you WANT them to be, so that you can control other people's speech or something]