I'm sorry you have lived this life. You are correct he is drinking himself to death-- you can read it in your own post.
I know it's painful, but please remember you didn't cause it, you can't control it, and you can't cure it. He has a disease over which he has no control and it is alcoholism. You know this. Don't question yourself over it, and don't obsess over the delusional actions and statements of your alcoholic husband. Everything out of his mouth at this point is sound and fury, signifying nothing.
There is, however, something you can do for you. It's called Al-Anon, and you can find a meeting here:
How to find a meeting in the US/Canada/Puerto Rico
If you do this you will find yourself becoming a happier person. If you make excuses not to, you will find nothing will change, even after your husband passes.
Take care,
Cyranoak