Are you saying there aren't downsides inherent with drinking itself? I'm onboard with letting people do what they want, but if what they want to do has negative effects the least we should do is make them aware of that.
Much wrong has been done in this country by telling people their behavior is a moral. As long as you don't hurt me or anyone else do whatever you want, you're free to drink yourself silly every night
[1] https://news.gallup.com/poll/237908/smoking-rate-hits-new-lo...
None of this is "moralizing", its simply reiterating the harmful effects of behaviors so others can make balanced decisions. Nobody is born aware of the dangers of junk food and alcohol, and they're easy to forget too unless one has personal experience with it (by then the damage is already done).