they vote about 80% Democrat?
73%, according to the last election. This won't always be the case, though. Hispanics are generally, deeply religious and though there are a lot of Catholic Democrats, I think the Dems will lose many of these people as they go farther to the left, fueled by their perception of a "mandate."
Also, when they elevate as a group in society, they won't like the ridiculous tax rates that fuel useless programs any more than republicans do. There are FAR more Hispanic Republicans than black republicans and I see that number rising in the not-too-distant-but-not-too-near-either future.