Not sure I agree. They control the entire production of chicken and pork and profits are thin to non-existent.My prediction is that the meatpackers will eventually use some of those big profits they're making to buy out some of the cow/calf ranchers as they go out of business. Then they will control the entire supply chain from start to finish just like they do for poultry and pork. Or they will get you to be a "contract producer" where you can supply cattle to them but they control everything from the breeding decisions, health protocols and feeding. The key being they are in control and you're just an employee at that point.
They don't control beef and the profits are unreal at the moment.
Look at Tyson's latest earning statement. Beef is what keeps their doors open. Not because they control the whole process but because they don't.