At this point, let's be honest: what can you really *do* to make him "see the light"?
Not a thing.
IMO, it's time to step away from the alkie and let him figure it out on his own. If and when he finds recovery, he'll need to do it by himself and for himself. Anything else robs him of that dignity.
Seeing as you're currently not living together, I would suggest a period of no contact between you in order for you to see clearly through the situation.