Your post makes it very clear that you consider drinking alcohol nothing but a means of getting **** faced and you don't understand alcohol drinks as a food item.
I don't anymore, but I used to order double jack and coke. I can't get that in Utah. I can get a jack and coke. To you, it seems, you think the complaint is that it takes twice as many drinks to get drunk. That's not it. I don't drink coke normally. I don't like coke. I order a double jack and coke because it tastes better than a jack and coke.
Beer, obviously something I'm into, is not just one thing that you guzzle until you're **** faced. The restriction of 4%abv for beer on tap has many unintended consequences.
It raises the cost of doing business for local microbreweries. Much easier to package beer into a 20 gallon keg than 400 cans and/or bottles. Much easier to ship a truck full of kegs than a truck full of bottles and cans, mostly because you can now fit a few times more stuff on the truck. Much easier for a bar or restaurant to store kegs than bottles and cans. I'm not super concerned about the environmental aspect, but if you use a keg you pour into a reusable glass instead of throwing a bottle away for every beer served. Many people prefer the flavor (it's psychological, but whatever) of draft beer as opposed to beer in a bottle or a can.
It is NOT harder to get **** faced in Utah. The laws don't accomplish anything. They just burden businesses. They just make hosting people from out of state more awkward. I mean a guy comes in, people want the drink they like and they want it the way they want it. So the guy orders the drink he likes, but he's in Utah and now has to be educated on why he can't have his drink the way he wants it.
I don't like it because it's dumb.