You're simultaneously claiming that movie viewers have no way to communicate and that Hollywood listens very hard to ticket sales. I think you'll have to pick one.
I agree these are systemic problems, but I think it's a giant mistake to absolve a corporation's execs and employees for moral responsibility for their actions. The social context is also part of the system, and it's one of the easiest parts to change.
It's simultaneously true that a single individual cannot communicate and that the actions of a diffuse, uncoordinated population are heard. That population can always be expected to contain a lot of uninformed, irrational consumers. "But what if everyone simultaneously thought very carefully about they want to consume" is not a thing that will ever happen and therefore not a valid solution.
I don't absolve executives of moral guilt, they're clearly doing something wrong. I distinguish between this condition of being in the wrong with the condition of being to blame or responsible for the result. They are guilty, but if they didn't make the call, there will always be another greedy, narcisistic, power-hungry sociopath ready to take their place in the boardroom. "But what if all executives in the entire competitive industry rejected the cash grab and instead made the moral choice" is also not a thing that will ever happen and therefore not a valid solution.
Without a mechanism for coordination, neither consumers nor producers can effect change; the system is all that's left to blame. Therefore, instead of moralizing or advocating individual action, we should build mechanisms to help people coordinate, work to shift the Overton window, and change the system to incentivize the behaviors you want, building very carefully to make sure that your changes are self-reinforcing.
Movies aren't made for single individuals, so I'm not sure why you think explicit communication from a single individual is the important kind of communication here.
Who gets to decide that the consumers are uninformed and irrational? I presume that's you judging people for their tastes? In my view people are in fact pretty good at picking the kind of entertainment they want.
A lot of critics complaining about mass tastes seem to have not thought through what is economically viable in mass media. The complaint is effectively, "I, a discerning person who had studied this medium, want different things out of it than casual consumers." Which is almost tautological. What restaurant critic goes to McDonald's and complains that the food's not amazing? Its job isn't to amaze the kind of person who becomes a restaurant critic.
But there is a mechanism for coordination. You're using it. Fans use it all the time to push entertainment industries in directions the like. In my view, that this isn't happening with film is not because of lack of communication. It's that the number of movie tickets sold peaked in 2007: https://www.the-numbers.com/market/
Innovation has moved away from the dying medium because the economic incentives for film have shifted.
I agree these are systemic problems, but I think it's a giant mistake to absolve a corporation's execs and employees for moral responsibility for their actions. The social context is also part of the system, and it's one of the easiest parts to change.