A lot of it here has to do with location.
In the Bible Belt, especially the buckle where I have lived most of my life, the majority of churches consider alcohol sinful (this pretty much kicked off during prohibition, when pastor Grape Juice decided to campaign against alcohol and wine in communion), strangely he had also "perfected" a new recipe of grape juice (you know him as Welch). After these crusades mainly by people such as Welch and "church women" who were fed up with their men being at taverns and pubs, many churches took very firm line stances against alcohol, going so far as to re-interpret the Bible and suggest that it is literal with everything except for wine. In which case, since they didn't have a word for grape juice (they did) when Jesus made wine, he actually made grape juice. They never stored wine, they stored the grapes in a non-fermented jelly solution then added water to it.
Ever since prohibition, virtually every independent and Southern Baptist Church have been completely against alcohol, to the point where consumption is sinful.
Presbyterians, Methodist, Lutheran, and Catholic are generally accepting of it. Most of the other denominations stand firm against it.
Religious people are easy to motivate to go on a crusade, if you can appeal to the emotional side of their moral compass. Just like marijuana and Reefer Madness. By showing something can be un-ethical, it is just blankly labeled as unethical.
In my opinion the Bible is about liberty through Christ. It is much easier to live a life of constraint with rules, however.