Hey, I am of mixed Irish and Mexican backround and I know the Mexica Movements stuff, first up, no one said all Europeans need to be removed, just those who are suppremists like the Nazis and KKK, secondly, I dunno where the dude before got his info, but Native Americans are the Indigenous people, we descended either Siberia( but this can be proven false) or potentially West Asian (Iran, Indian, Sumeria, etc.) as the hook nose, low brows and black hair is visible. 
 I personally support Sinn Fein style Republicanisn like James Connelly, America can only succeed as a socialist nation and the Irish actually fought alongside Mexicans against the US as did Americans of Scottish, German and even English descent, the leader though being the Irish, so why would a Mexican hate and Irishman? Most of us only want equality and the treaty honored. As to black haired Celts, there are alot of black haired Irish, most Irish I know are either red or black haird with blue or green eyes, Celts are indigenous to Ireland, Scotland Walkes and originally migrated out of modern day Macedonia and were displaced by the Romans and Germans.