Or master copy, or master tradesman. All this "inclusive terminology" is really the puritanism of the 21st century.
It's only when used in the separate sense specifically opposite "slave".
There's no need to caricature or misrepresent the POV that you obviously disagree with here.
you clearly missed https://twitter.com/natfriedman/status/1271253144442253312
So thanks. ;)
Countering slavery is hard. Let's go renaming!