Should this mischief be enacted, it will substantially advance America's ongoing balkanization. The reconquistas and their fellow travelers will have accomplished what the estimable Bobby Lee could not. And all without a shot being fired in anger. (Maybe).
In Houston you can vote in English, Spanish, and Vietnamese.
English and Spanish voting is done electronically while Vietnamese voters still use a paper ballot. Such "separate but equal" voting mechanisms would appear to be illegal. It doesn't matter that they vote at the same polls, they do not use the same voting mechanism.