Doxxing is an illegal act in the U.S. if it’s used to harass or intimidate someone to any extent, according to law firm Brickfield & Donahue. For these purposes, it’s irrelevant if the information is publicly available or not.
Find a DA who will prosecute and a jury who will convict. Unless prosecutors are willing to take the case. James Comey has admitted publicly to leaking confidential information to the press to harass and harm President Trump. Where are the prosecutors?
No DA in Texas,or federal prosecutors at the DOJ, are going to prosecute either of the Castro brothers for doxxing.
Laws are for the little people.