For the record, Webster has nothing of race in its definition of "uppity":
And the word was used appropriately by Phantassm.
Main Entry:
up·pi·tyPronunciation: \ˈə-pə-tē\ Function: adjective Etymology: probably from up + -ity (as in persnickity, variant of persnickety) Date: 1880 : putting on or marked by airs of superiority : arrogant , presumptuous <uppity technicians> <a small uppity country>
— up·pi·ti·ness also up·pi·ty·ness noun
And the word was used appropriately by Phantassm.