That's not the quote. What Ali said was:
"I'm not gonna help nobody get something my negroes don't have. If I'm gonna die, I'll die now right here fighting you, if I'm gonna die. You my enemy. My enemies are white people, not Viet Congs or Chinese or Japanese. You my opposer when I want freedom. You my opposer when I want justice. You my opposer when I want equality. You won't even stand up for me in America for my religious beliefs, and you want me to go somewhere and fight, but you won't even stand up for me here at home."