I think you're still describing a cultural cause here.
Responding to perceived aggression with your own aggression is not a given. It's a culturally decided response, not an instinctive one.
A good christian is supposed to respond to aggression by "turning the other cheek" and not responding at all. A strict, honor based society might say the only way to respond to aggression is by killing that person.
Western culture falls in between these two. Reduced inhibition simply makes your judgement of the consequences worse so people usually make the choice they want to make (shaped by their culture) and just don't think though what it could mean.
Responding to perceived aggression with your own aggression is not a given. It's a culturally decided response, not an instinctive one.
A good christian is supposed to respond to aggression by "turning the other cheek" and not responding at all. A strict, honor based society might say the only way to respond to aggression is by killing that person.
Western culture falls in between these two. Reduced inhibition simply makes your judgement of the consequences worse so people usually make the choice they want to make (shaped by their culture) and just don't think though what it could mean.