The issue with the Sherman Act is that it is broad and sweeping and leaves discretion up to the government.
So the answer to your question is: monopolization is illegal according to the the Sherman Act, and the power to regulate markets is well within the (extremely broad) scope of existing laws (including the Federal Trade Commission Act and the Clayton Act).
So the answer to your question is: monopolization is illegal according to the the Sherman Act, and the power to regulate markets is well within the (extremely broad) scope of existing laws (including the Federal Trade Commission Act and the Clayton Act).
https://www.ftc.gov/advice-guidance/competition-guidance/gui...