If you look at all the rabidly anti-immigration bills that have been pushed through states (including our own), they have all been authored by Republicans. it is no wonder Hispanics side with the Democrats when these Republican laws have destroyed family units and lives.
You can smirk here all you want, but take a drive around Capital Hill in OKC or 21st and garnet in Tulsa. Look around. Talk to teachers in the public school systems about the number of LEGAL Hispanic children. There's a day of reckoning coming.
Also understand that the GOP is doomed either way because of this. After all of the anti-immigration bills and stances taken by the GOP, the Republicans will NEVER get the Latino vote, even if they put a full-on amnesty bill through Congress. As soon as the illegals were made legal (and able to vote), all of those new voters would vote with the Democrats, assuring that a Republican president never saw the White House again.
And yes - that day of reckoning is coming. Note all of the racial mob violence against a certain demographic over the last few years, and understand that it hasn't even really started yet (although the aggressors aren't typically Latinos - yet). And still people embrace the growing tide of those that will ultimately rule over them. And those that think they'll be immune because of political affiliation? Sorry about that.