I'm Puerto Rican and hated Camacho. I was also rooting for De La Hoya over Trinidad. Liked both guys, but was a bigger fan of Oscars.
It's normal though to favor your own nationality. I don't think there's anything wrong with that. It's the same as favoring a Football team based on where you were born or are currently living. The same type of Pride applies. Just go to a Yankees vs Red Sox game.