As far as "when it is red" (Prov 23:31) being a term for alcoholic, this is not a new teaching. Besides the Bibsac article in my third post on the prohibition on alcohol, and the work of Hebrew scholar Stephen Reynolds, there is more below.
Here are some more links to look at. In my part three, I have the Bibsac article, which is excellent. You've got here and here and here and here. You also have here and here and here saying the same thing. You also have here and here and here.
Here is an interesting scientific explanation that ties in Proverbs 23:31. Here is another scientific presentation when that would have been appropo. Here is another scientific explanation.