GP's claim was that it is all recruiting is in the name of the diversity of the student body and future student demographics. That's trivially observably false.
Colleges and universities are concentrating their recruitment offers on the most profitable students, which are the international and out of state students because for every non-state student they get to charge more money.
That's why the TX university is interested in recruiting AZ students, rather than TX students: student with the same demographic from AZ will bring more revenue to TX university vs the TX student.