I need to see your outline in order to tell if this is fitting.
One correction needed already: "People can be discriminated against because of their religion ...
Another issue is that Hispanics don't make a race, as such. This is more of an issue of ethnicity rather than race.
I would refer to racial discrimination in respect to how Africans, African-Americans, Chinese (or any other people from the Orient), et al., are treated. I'd refer to ethnic discrimination in respect to how Irish, Germans, Mexicans, Filipinos, et al., are treated.
http://www.answers.com/topic/race-classification-of-human-beings