"The United States currently has antitrust laws in order to prevent businesses from monopolizing a given market. However, throughout its history, major league baseball has monopolized the baseball market, preventing upstart competitors from ever really getting off the ground. And the Supreme Court has upheld MLB’s right to their monopoly several times. In many ways, major league baseball is the only true monopoly in the United States, and has been since its inception."
https://www.beyondtheboxscore.com/2008/12/3/678134/the-history-of-baseball-s
I have not read this essay. However I did wright a paper on the subject while at Cornell in 1973. "The History Of Anti-trust In Baseball".
Anyone here can say whatever they want. Facts are facts.