The word “Master Race” is clearly equivalent to terms which were used by Nazis and so are today’s far right wing and alt-rights.
There are other communities which created similar narratives, especially from the 4chan side, and I think the origin of “PC Master Race” comes from there.
Because?
“Master Race” will still be referring to this kind of “We are over everything, because our race is over everything” narrative.
Which is basicly the Linux community in a nutshell. We all see ourselves as superior