She won't make a dent in the hispanic vote. She is white and doesn't speak Spanish. She didn't have a relatable upbringing as her mother is Italian and she is third-generation; her grandfather immigrated here in the 1930s.
Although I'm not the biggest CCM fan, that doesn't take away her hispanic identity, nor her appeals to our interests. Try to disengage from Mexican-American stereotypes. We're a diverse group and our roots span continents. Not all of us speak Spanish and our native blood doesn't always dominate our phenotype.
I agree with everything you said.
However, there is a difference between non-Hispanic White people and White Hispanics.
It's like the difference between African-Americans and Afro-Caribbeans. Yeah, both are Black but have a completely different culture and upbringing and history.
Additionally, the racial term "White" in this country is usually associated with people who are predominantly of North and Western European descent (British, French, German, Dutch, Nordic, Irish). Most Latinos have Southern European ancestry (Spanish or Portuguese).