Helpfully this is exactly the sort of argument I'm complaining about. The basic form is "the regulators did this", its "hard to show concrete harm" but therefore "we should go after any company that is dominant in any market".
If we skip to the handwave, what is and how solid is the evidence that the regulator's actions were sensible? Targeting the most competent company for harassment is, on the face of it, a bad strategy.
> Imagine trying to build the modern internet under a telco monopoly
"Before the 1996 Act was passed, the largest four ILECs owned less than half of all the lines in the country while, five years later, the largest four local telephone companies owned about 85% of all the lines in the country." [0]
Yeah, that'd be really hard. But the major problem is poor regulation creating monopolies/incentives for them. The correct approach is to go for the root cause - competition stifling regulation - rather than setting up monopolies and then ineffectually trying to fight them in courts.
"Antitrust" is a distraction from the actual problem - bad regulation and incentives. And if the coversation revolved around actual attempts at showing evidence the antitrust stuff is hard to sustain. The examples are trivial. People on HN were whinging about Google removing an alert box in Chrome the other week.
[0] https://en.wikipedia.org/wiki/Telecommunications_Act_of_1996