The DoJ struggles mightily to get people to care. Long before any tech company mattered.

Congress has had almost a century to tackle the issue.

IMO the stuff the DoJ says matters wrt antitrust, like low prices for consumers, which isn't and has never been in the law and which Congress had plenty of time to enshrine in the law, is better solved by globalization, which is a consensus, mainstream POV. There is a lot of Congressional action on globalization!