Border patrol treatment of migrants is bad in Texas. It's bad in Arizona too. The humanitarian aid groups mentioned are the ones I work with when I am there during the rest of the year.
No matter what you think about current immigration policy or what it should be, you have to be a monster to think treating human beings this way is OK.
https://theintercept.com/2023/07/21/arizona-heatwave-border-patrol-migrants/