I suspect he is using what you say to justify his drinking in his mind, that he is believing you are the bad guy driving him to drink. A common characteristic for alcoholics from what I understand.
It very hard to build a future with an active alcoholic. It means you are going to be the one playing the role of the responsible adult (to some extent or another most likely). It means there is not going to be equality in the relationship since an active A is incapable of giving you what you want in a relationship.
Only you can decide if you want to fight against his preference for alcohol over everything else in his world.