mendax, there are many ways in which the socially destructive capacity of alcohol and guns can be directly compared.
For example, one could compare how many deaths per year are attributed to alcohol, and how many deaths per year are attributed to guns. that would be one simple way to directly compare them.
The fact of the matter is, alcohol is a very widely abused poison -- yes, it is a poison -- and it is addictive. And yet, this poison can be linked to more deaths per year than guns...and yet I can walk in to probably 15 stores within a mile of my house -- grocery stores, pharmacies, gas station, specialized liquor stores -- and walk to the counter and on the merit of my age alone buy as much alcohol as my cash will allow and walk away.
You say banning alcohol will not work -- agreed, it's been tried, and criminals have a way of supplying what is desired. In like manner, I defy you to remove guns from the hands of criminals.
But what you could do, what society could do, if they were so concerned, is advocate the strict regulation of alcohol - to at the very least minimize it's ease of access.
I can't even buy sudafed for my allergies with showing my ID and having the quanity monitored by the government ( because I'm clearly going to be cooking meth with it...)....and yet alcohol flows as freely as we please, despite it's inherent danger to our society.
And the thing about guns v. alcohol. Guns kills...got it. Alcohol kills, too. Guns tend to kill other people involved in violence -- drug crime, people involved in physical confrontation, etc. Alcohol kills innocent people driving down the freeway.
But the destuctive power of alcohol reaches far beyond death. It destroys lives, it causes people to lose jobs, it destroys marriages, it destroys health and adds a buden to our health care system, etc.
So...why the hard on to ban guns....which will never be banished from the hands of criminals, as we have never banned anything from the hands of criminals...but we can't even regulate alcohol beyond a magic date on a calendar?