Number one, I would agree with some of the others. You cannot change this indivdual and his or her behavior as an alcoholic any more than you can change what the weather is going to be like tomorrow, or change the time that the sun will rise. Attempting to figure out what's going on inside his head or publicly shaming him via a web site or blog will help no one, in fact it will probably just make matters worse.
Your best bet is to find resources to help you and your existing family heal and live a full life on your own. That could be al-anon, counseling, spirituality on your own part - or a combination of all.