According to the federal government(http://www.samhsa.gov/data/sites/default/files/NSDUH-DetTabs2014/NSDUH-DetTabs2014.htm#tab5-1b) 6.4% of Americans age 12 or older abused or were dependent on alcohol at some time during 2014. I suppose one could call that a "proliferation of drunks" ... but the burden of proof lies with anyone who would claim that as a result of that "proliferation" our society is currently "unfit for decent people to live in."
It is certain to be a contributing factor, and it is a certainty that our society at the present is a cesspit.