I donīt know about the UK, but in Germany you canīt be penalized for one offence more than once. As a pilot, you can and you are.
Not being able to go airside is the second penalty - this isnīt fair. If the guy would get another job after being convicted and having done his sentence and having had therapy is another question, but that he wonīt stand a chance if he cant go airside is clear.
There a policemen with an alcohol problem, they caryy guns over here and they are not sacked immediately etc. Alcoholism IS AN ADDICTION aka illness.
Iīm a teetotaler but I honestly think destroying this man completely before he can have treatment is really the wrong approach. If he has a second chance and flunks that, he should be gone for good.