If alcoholism is a “disease”, then why can I not catch it from another person, and why are there no alcoholism epidemics?  What bacteria or virus is supposedly the cause of this "disease"?

This is just another case of authorities and those in power undermining the very idea of personal responsibility.  And remember, this is the same American Medical Association that for many decades officially considered homosexuality a "disease" as well, and that is currently trying to pressure doctors into declaring those who oppose the current corrupt and elitist status-quo in any meaningful way as suffering from "oppositional defiance disorder", in the best tradition of the abuse of psychiatry for political purposes in the Stalinist USSR.