Surely yobbish behaviour is pretty much the norm in the UK now, so when service personnel are portrayed as drunks/louts etc it is nothing more than hypocrisy. Also its about finding an easy target for blaming alcohol related violence.
Talking of hypocrisy most criminal behaviour is not punished, the liberal lawyers who decide which cases to pursue think things like assault and drug dealing are not worth court time, the infantryman in a firefight with the Taleban is liable to prosecution if a liberal and very PC lawyer thinks he used excessive force.
How did this happen?