My dude are you slow? Her fighting for Latino rights has absolutely nothing to do with her race. Latino is not a race. She can be Latino and still be black. Latino is a linguistic group.
This is a quote from her back in 2005.
When I go to the D.R., the press in Santo Domingo always asks, "¿Qué te consideras, dominicana o americana?" (What do you consider yourself, Dominican or American?) I don't understand it, and it's the same people asking the same question. So I say, time and time again, "Yo soy una mujer negra." ("I am a black woman.") [They go,] "Oh, no, tú eres trigueñita." ("Oh no, you are 'dark skinned'") I'm like, "No! Let's get it straight, yo soy una mujer negra." ("I am a black woman.")