Also if you look at the history of wine one of it's main purposes was to provide something to drink during meals. The water supply was not safe to drink so people drank wine with their food instead. Often times wines were developed to pair with the foods of the region. Wine was considered essential to meals much like a loaf of bread. People needed it to survive. How can this be sinful?
So to answer the question, in my view, it is probably sinful to try and deny others the enjoyment of wine then it is to drink wine in moderation. Everyone has the right to decide for themselves what the right path for them is but they need to give others the same freedom. Just because something can be abused is not a reason to punish/deny those that exercise good judgment.