"...Seems like a lose/lose to me..."
Only gubmint statisticians would consider a “white” and Hispanic person a “mixed marriage”. A conservative guy could match up well with a Hispanic woman, as they tend to appreciate children, hard work, and hetero family values. She’ll have expectations as well, but they’d probably be within reason.
The reverse is more complex; a guy from a macho culture may have a hard time with a white woman.