From my own experience words are nothing but letters strung together, and it takes the actions to make meaning out of them. So far you have loads of words which consist of nothing but stuff I put on my roses.
He hasn't done anything about the problems in your marriage or those of alcoholism because to him THEY AREN"T HIS PROBLEMS, he has dumped them onto you.
I agree that NC is the only way you can save yourself from being swamped in his quacking, and having some peace and quiet in your life. Let him be as he wants and lead your own life as best you can, til it either proves he is doing something about himself or you decide it is over and done.
Wishing you all the best and lots of strength and peace of mind.