Hi, and welcome.
You've had your say. Saying it a different way won't get through to him. It sounds like he's an alcoholic--and alcoholics almost NEVER get why their drinking would annoy/upset anyone else.
I'd suggest learning all you can about alcoholism, continuing to read/post here, and find an Al-Anon meeting near you. Al-Anon is for family and friends of alcoholics. One other thing to be aware of is that his drinking WILL progress. Growing up in a house with an alcoholic parent is terrible for kids. You might think your child is not aware of what's going on, but more than likely s/he knows there's something weird going on.