"I completely agree that we should not be focusing on coming up with a list of what we believe in sin and what is not"
Concerning lists:The ten commandments is list. The Beautides is a list. The bible is very instructional. As Christians, we need to know in no uncertain terms what we should and should not do, and the bible tells us what these things are. Remember, TRUTH IS ABSOLUTE. Whatever God says sin is, that's what it is, whether we agree with it or not. If we still do them, we have to face the conquences of spiritual death, and God's anger towards us.
I know the bible specifically says not to drink wine in excess. And instead of being full of drink, be filled with the Holy Spirit. You can place drugs in the same place as wine pretty much, where we should not do harm to our bodies, being in the body of Christ.