And what's "enough" people? The costs for Dish are fixed whether they're serving one person or one million. Get enough people to drop locals and Dish is losing money.
I don't think they're having a problem "making business". Yes, they make more because of retrans. But what you're forgetting is the broadcasters don't get all of the retrans fees. They have to pay a chunk to the network. So that $1 - $1.50 isn't pure profit either.
That's the problem. It's people like my wife who is addicted to PTAT and shows like Young Sheldon. Want to know happens in the end, watch The Big Bang Theory. What's the number, how does say 45% to 50% of a viewing market sound? I don't know. But, you're definately taking what I present as theoretical and are dead set on proving your side of this debate as concrete.
Also, I think your logic is way off. We have a provider who sits here and advises subscribers to drop locals. They make local channel viewership optional. Nobody else will even touch it. As for your who gets the money, the locals get more than Dish does. So again, they are losing less from subs dropping the channel than they gain while paying in retransmission fees.
Its similar to HBO. Dish was making a cut on HBO and Cinemax. But they decided it better to let HBO and Cinemax go than pay the gauging that AT&T was charging.