The texas hispanic vote is a huge component of the total hispanic vote. Presidental candidates (except Gore) tend to carry their own state by huge margins.
Without his home state hispanics pumping up the numbers, Bush was solidly beaten in the nationwide hispanic vote.
Not every politician is from Texas so they won't get that same home state advantage. Let's see how well a conservative republican from Ohio does with the hispanic vote.
Out of all the rock-solid stupid arguments for eradicating our borders this one, i.e. that it will help the Republican Party's political fortunes, is perhaps the most incomprehensibly stupid, and that's saying something.