Where are you at, location definitely matters. In Philly I don't really see it either but my Aunt is married to a white dude (not a cac) and she lives in MO.
I'm in Oklahoma, where the majority of Latinos would be Mexican, if I weren't living in a city that possesses a military base. I've encountered and socialized with many Ricans (because they're everywhere), Dominicans and a few Colombians.... There is a pretty good amount of central Americans too....
All date mainly intra-culturally.... A few black dudes have wifed up these women.... very few white.... where white is a large majority of the state's population, followed by black, native American, Latino, Asian/other. Reasoning for this is because the whites here aren't like the ones in metropolitan cities... they are less liberal(more racist) and marry other whites.