I look at it like this, MEXICAN people are mostly conservative, so are the immigrants new to America, however those new immigrants vote democrat while still new here to get the handouts. once they've achieved wealth and comfort they start getting hammered on with taxes and realize how rediculous our laws really are (like why do I have to pay taxes: as a poor man here illegally with nothing who worked two jobs for a decade, couldn't speak or read english, avoided the law, paid all cash and never had credit, raised a family this way.... do american borne freaks/bums get welfare???), they start jumping ship. them and their kids ARE oftentimes republican, which is why the democrats need to open the floodgates, to make up for the turnover in a big way for a few years. our nation is sunk financially and getting crowded too so the window of opportunity is about to close- they have to make their move now or never. either way that turnover is going to hurt them so they're going to try to milk what they can out of the situation before natural-borne citizen rage boils over, and the former mexicans are assimilated and furious too (for the mentality I mentioned above).
ask any successful former mexican how he/she feels about bums! I have and it's hilarious, they hate them as much as us.
also they're straight, pro-family, super-catholic, and quick to take up shooting and hunting if you initiate them.