what do you do... when a black cusses a mexican in your presence

I was at the dumpster taking trash out. a black dude was there smokin pot with his white buddy when this little hispanic dude walks in.

"hey! theres mah liddle baby mezzican. cmon over you -:censored:- mezzcan let me put you to sleep fo evah.!"

The black started yellin at the "mezzcan" giving him orders and stuff like that. and then i blew up.

"hey look dude... i know this guy and he's awsome. jus cuz he's mexican you cant shove him around like that. I mean get a grip man thats pathetic."

Then him and his white friend started cussing and saying "man you gotta watch these guys there harmful to the environment!"

I was so mad. so mad.