Having said that, I am convinced that a small amount of alcohol on a conservative basis is not unhealthy for you. However, I believe that Latter-day Saints are admonished to abstain from alcohol in the event that it could potentially ruin their lives. I'm not saying that alcohol is in the same league as cocaine, but as Aaron Sorkin once said, "You know how I got addicted to cocaine? I tried it". I think some people (a lot of people) are born with addictive personalities, and some things in life are inherently addictive. Thus The Church admonishes its members to abstain from alcohol/addictive substances as somewhat of a safety precaution.
Same thing can be said about gambling. Sure there are people who can withdraw $100 and head to Wendover and call it quits when the $100 is gone, but some people can't stop and they will literally end up ruining their own lives as well as those close to them.
You never take that first drink, or you never place that first bet at the blackjack table and guess what? You'll never be a drunk and you'll never be a degenerate gambler who's got it in with the mob.
Those are valid points. My grandfather was an alcoholic, which nearly ruined his family. Fortunately he got sober before I was born (or perhaps shortly thereafter), so I never knew him that way. But it scarred the family enough that I am *extremely* thankful that my family and church taught me to never take the first sip.
That being said, even though I'm LDS I wouldn't necessarily think that drinking wine in and of itself is sinful. For LDS it is, I believe, because we've made a promise not to, but I won't condemn nonLDS people for an occasional glass of wine. Getting drunk, however, *is* sinful, imho.
I see the Word of Wisdom (that's what we call the health code, for those unfamiliar with the phrase) as being a lot like living kosher if one is a Jew. It sets the community apart from the rest of the world. It also helps people live more healthily (well, kosher mainly did that in the "olden" days, perhaps not so much now).
As far as the OP goes, I don't know if the wine that Jesus drank was alcoholic or not. As I think others have mentioned, alcohol was very important as a preservative back then (or so I understand), so it's quite possible that it did. However, I don't think it's coincidence that the Word of Wisdom moved from a recommendation to a commandment in the LDS church right around the time refrigeration became possible. Times change, and so do some of the guidelines on how we should live our lives. When alcohol was no longer needed as much to preserve foods, the minuses that come with alcoholism started to outweigh the possible benefits. Makes sense to me.