If there were a Master Race (purely hypothetical), what would it look like?
It would get no sympathy if it were under attack. People would hate and envy it, but they would also want to live in its homeland(s). Men of other races would lust after its beautiful women, and seek to weaken and undermine its men.
I'll have to be on the lookout to see if this describes any races, to figure out if there's indeed a "master race"...