Master and slave in this context has nothing to do with human slavery.
I agree with all of this. I'm sure if I were to work with master/slave systems for a while the connotation to me would change from the historical one to the technical. However even then, if I communicate with someone outside of technical people, it will carry the slavery connotation to them.
A while ago I had a similar issue when trying to explain male and female connectors to a friend. When she heard me use the terminology she thought I was joking, and I had to show her the wikipedia article and connectors on amazon. In that case it was harmless, but I could imagine the same scenario happening when trying to explain master/slave terminology to a colored person, and it coming off as an offensive joke.
So should the BDSM community stop using the terms master and slave, or it's okay in that context but not in a technology context? Curious if you have a double standard or if you'll change your mind.
Edit to add: I truly hope you answer the BDSM question instead of the likely avoidance so you can maintain an irrational position.