If there's nothing in movie theaters but trash, but your culture values movie-going experience, then you have no choice but either watch trash or forgo this part of your cultural experience altogether. I've been choosing the latter for years now, but I can understand people that choose the former - because I still miss the experience. I'd love to go back to it - but not with trash.
The McDonalds analogy is actually better than you think - imagine by some market quirk most of the restaurants in your city hired chefs that suck at their job. Because, say, The American Culinary Institute declared food is not supposed to taste good, it is supposed to send the right message, and the taste is secondary. It's not like the food isn't edible or harmful anymore - it still delivers the nutrition, and still kinda edible, but sucks. Ignoring the fact you could cook for yourself - let's imagine for a minute you have to dine out - what would you do? You'd go and eat sucky food. And since you do, the business model is provably working. Maybe if the whole town agreed to not eat out for a couple of months as a protest against sucky food, it could be changed - but what are the chances of that actually happening?
The McDonalds analogy is actually better than you think - imagine by some market quirk most of the restaurants in your city hired chefs that suck at their job. Because, say, The American Culinary Institute declared food is not supposed to taste good, it is supposed to send the right message, and the taste is secondary. It's not like the food isn't edible or harmful anymore - it still delivers the nutrition, and still kinda edible, but sucks. Ignoring the fact you could cook for yourself - let's imagine for a minute you have to dine out - what would you do? You'd go and eat sucky food. And since you do, the business model is provably working. Maybe if the whole town agreed to not eat out for a couple of months as a protest against sucky food, it could be changed - but what are the chances of that actually happening?