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.
well that’s not really the point… say a jewish person (or a member of any group persecuted by the ““master race””) expresses discomfort with the term being used (even jokingly), If you tell that person to just leave the community then that means their discomfort does not matter and there is no interest in listening to their issues in this community.
And in all honesty I wouldn’t want to be a part of a community that acts like that