I don't get the impression that anyone here is questioning whether or not what this man did is technically legal. How could it be questioned? It's factually true that Texas specifically defines this action as legal. Whether that will remain the case is yet to be seen, but any new law couldn't be applied retroactively anyway, making it a moot point. No law was broken.
Common sense should prevail, however. Drinking alcohol as an adult is legal. Being an alcoholic is legal. Children are exposed to adults drinking alcohol quite frequently; there are commercials on TV, ads in magazines. And yet, faced with credible evidence that one parent is an alcoholic, no sane family court judge would allow unsupervised visitation by that parent. It is not in the children's best interest regarding their safety and development. Neither is being shown hardcore pornography.
Of course, I'm assuming a lot of things, mainly that this happened exactly as reported. Fat chance, right? Barring new information, my position remains the same, except for my hyperbole about cutting off his nuts. Give me a blade and it becomes a different story. Maybe it wouldn't for a few people here, which is why we leave decisions of this nature to a court system operating from an objective set of laws.