The main reason Disney and the others don't want to sell a la carte is because when you give customers the choice, they buy less channels. Less channels mean you make less money.
I care about our employees more than anybody in my company. I care about my kids, too, but that doesn't mean I give them everything that they want.
Allowing your kids to watch TV doesn't have to mean they have no choice but to see commercials for junk food and alcohol.