Baena's Daughter: It's Just 'Cause Mom's Hispanic

Mildred "Patty" Baena's daughter is breaking her silence about her mom's scandal -- claiming the ONLY reason people care about it is because Arnold was in an interracial affair.

27-year-old Jackie Rozo told Telemundo, "It's just a big thing because she's Hispanic, and he's a celebrity."

Either way, it's still all news to her -- Jackie claims she had "no idea" her half-brother was fathered by the Governator until the news broke last week.

But now, Jackie's coming to her mom's defense -- adding, "She's like a superwoman pretty much" ... "My mother does not need to justify herself."