How do you justify this?
I justify that statement by recognizing that a human who is intoxicated is acting with degraded reason, or no reason at all. It is the lack of reason that causes one to drive drunk, beat his family, do stupid things with guns and knives, vote for democrats.
In other words, be a danger to our community.
A human is by nature a rather dangerous being. It is the effects of civilization which moderate the actions of humans. Intoxication removes the limits civilization imposes on us and allows us to act out our less reasonable natures. In such a state we invariablly impose on the rights of our nieghbors.