WRONG on "we don't have options" beyond the 12-step movement.
There's a number of "secular" support groups like Liifering Secular Recovery.
There's drugs like naltrexone that may reduce cravings for alcohol, with experimental work on refining and improving them.
Halluncinogens? Speaking of 12-step groups, Bill Wilson came up with the nuttery of using LSD for alcoholism 50 years ago.
As for PTSD? I see much more promise in modern pharamaceuticals that, delivered quickly ehough, prevent severely adverse memories from "consolidating." They're probably more likely to prove effective on long-ago event memories, too.