Before we get rolling on this, Redmayne, are you asking about the personality markers of those 'inherent alcoholics' in the absence of alcohol? Possibly of those who haven't yet had a drop to drink? Ever?
Your thesis is obviously that such a person exists. Hmmmmmm. Hindsight doesn't count for this obviously, so anecdotal evidence is just that. Can you support this idea, from credible sources, that there are alcoholics who haven't yet had a drop? A longitudinal study, perhaps?