You don't have a grasp on in-state tuition requirements in Texas, nor reciprocity agreements that states choose or not choose to participate in.
You don't get instate tuition rates just from being from Mexico. If you don't live here, you're not getting instate tuition rates, regardless of where you're from. If somebody is born in Mexico and moves to California, that student will not get instate tuition rates in Texas. You don't get instate tuition rates by just moving here. If your state is not part of a reciprocity agreement with Texas, then you must live in Texas and pay taxes here for X amount of time. If you're an illegal, you must reside here 3 years prior to graduating high school. At that point, you get in-state tuition rates, since you have been paying into the system.
Since you wanted to cite a resident of Oklahoma as not getting instate tuition, their state schools have chosen not to participate in reciprocity agreements with Texas. That doesn't stop a student of Oklahoma from getting instate tuition in Oklahoma. That student (and his family/guardian) have not been domiciled in Texas, therefore they won't get tuition. If they move down here and pay into the system, they will get instate tuition.
>> You don’t get instate tuition rates just from being from Mexico. <<
Great! Let’s say someone actually established that his illegal alien parents WERE living in Texas for three years. Well, now we know where they live, let’s deport them... after we charge them for all the benefits they received from OUR public school system.
Wait, you and Perry weren’t planning on aiding and abetting illegal immigration by knowingly harboring criminals who broke our laws to enter, with mens rhea, were you? I mean, here you have the official documentation to prove their illegal acts, and someone to witness against them, that he was dragged to America against his will by invaders breaking our immigration laws.