An accusation brought to the FTC by an organization whose founding mission statement is that all of the problems in the farm industry are because of monopolistic corporations. Only a single member of their board/staff even owns a farm.
It's literally their mission to make this claim.
Instead of being a parrot and squawking, read the article. The source for the data is Cal-Maine's own financial statements.
Yes, there are some facts, but you should learn the difference between opinions and conclusions.