This. Antitrust lawsuits almost always focus on what exactly the market is that the players play in. "Monopoly" is a highly technical economic and legal term

This. Antitrust lawsuits almost always focus on what exactly the market is that the players play in. "Monopoly" is a highly technical economic and legal term that is scrutinized on a case-by-case basis. It is not the broad stroke that the public likes to use.