Then tell the courts to stop fining them and start fining all the closed platforms.
There is a clear legal asymmetry where allowing competitors on your platform makes you liable if they complain, but blocking out everyone except for yourself is a totally ok and legally rosy way to do business.
There is a clear legal asymmetry where allowing competitors on your platform makes you liable if they complain, but blocking out everyone except for yourself is a totally ok and legally rosy way to do business.