That's what you claim, but you take care to avoid the actual number of violent crimes committed by drunks, or the number of motoring offences committed by drunks.
You town may have shambling drunks fighting in the streets at closing time. You don't find crowds of stoners doing that.
After a defeat in a football match, the wives of drunks dread their violent husbands coming home looking for a victim to knock about.