Zero tolerance, utter nonsense in regards to EK and the GCAA and peddling fear.
There are prescribed limits which are
9 ug/100ml or 0.02 Blood Alcohol Content and no alcohol to be consumed within 12 hours of commencing a duty.
Basically 25% of the allowed driving limit in most US states and the same limit prescribed by EASA. However it may be lower in some countries.
Depending in your metabolism, general use of alcohol, body weight and amount consumed 12 hours may not be enough, for others eight may be enough.
As professionals we should know our limits, many have gone and bought breathylisers, not because they are alcoholics, but because they are responsible professionals and that’s the only sure fire way to know your metabolism.
if your over and flying an aircraft I have no issue with Medicals pulled. But alcoholism is a disease and should be treated like any other imho