I think some of you are missing the point.
I'm a drinker and enjoy a drink or two during my Disney vacations.
It's the people that don't drink responsibly who are on the verge of ruining it for those of us who DO drink responsibly.
Some of you are saying..hey...we should have the right to drink, and if you don't like it, then don't come to the parks that allow drinking.
I tend to agree with the OP, but only because I believe they too, as park guests, have the right to be in EPCOT, or anywhere else on Disney property, and not be exposed to rude, drunken people.
Much like the OP, I think that if drunk guests continue to be a problem, then perhaps drinking should be confined to Pleasure Island, where the kids can't witness it.
Instead of condeming those who don't agree with the drinking policies in WDW, maybe those of us who enjoy drinking on property should remind those people who act up when they embibe in WDW that they need to more responsible or else they might wreck it for all of us who enjoy a beer or two.