I don't think that's an overly strong argument. But there is some meat to it. When people are at a party and booze is present that's one thing, and even if ther

I don't think that's an overly strong argument. But there is some meat to it. When people are at a party and booze is present that's one thing, and even if there is hard liquor it can still be possible to avoid drinking and have a good time while connecting with others. But there is a transition point where drinking becomes the focus of a party rather than just a, sometimes, part of it. And those sorts of parties tend to become exclusionary just by their very nature. As a mature adult, even one who drinks, it becomes tiresome and very non-fun to go to party after party where booze is the main attraction, where it's difficult to have a conversation because it's too loud or most people are too drunk to converse with, and where people get so trashed they start to have a bad time (not being able to stand, puking, passing out, whatever). The problem is that the boundary line can be difficult to discern objectively. And when people who enjoy boozy parties try to judge them it's all to easy to dismiss the problems because it's just so damned much fun for them. But it is a serious problem, especially in a professional industry.