There won't be a need to if you stop discussing his wrongs. Realistically it doesn't do you any good does it? I know you would like him to see the error of his ways, but that's not happening. No matter how many times you tell him, it's not happening.
Right now, he doesn't have a problem with his drinking, you do. That fact, still, doesn't change anything.
It's really difficult when you see someone making, what you perceive to be a big mistake, to not jump in with advice. This could all be "fixed" if he would just listen to reason, right?
That's not the case with alcoholism. His "alcoholic voice" - that one in his head. You don't have a snowball's hope in heck of getting through there.
He is who he is right now, maybe a great guy underneath it all, but he is also a person who is deep in to alcoholism, not two people, one, so trying to appeal to his "great guy" side is getting you no where.
Accept him just the way he is (that's not easy but can be worked on). Far better to focus on yourself and your kiddies, you need to heal and they need you.