No one is born an alcoholic. There has never been any evidence to suggest an inheritance of alcoholism (to my knowledge). It's just one of those things that people say and no one really questions it because so many people say it. Sort of like the efficacy of Alcoholics Anonymous (which actually has the same success rate as quitting without any help).

To my knowledge, there's no evidence to support the idea that drinking a little has health benefits.

Also, alcoholism is not a disease. But that's neither here nor there.

Anyway, I've known a few people I'd categorize as ENTj, and they didn't drink excessively (some didn't even drink, period). In fact, most, if not all, of them would consider it a very bad idea to get "smashed."