With absolutely no partisan bias whatsoever, I submit that rational people should find the concentration of power worrisome.
But break up the telecom oligopoly too.
[1] https://en.m.wikipedia.org/wiki/Sherman_Antitrust_Act_of_189...
The anti-trust legislation is still in force, but it needs participation from the Justice Department, which is systematically neglecting its duty.
It is not against the law to have a monopoly, but when you choose to have one you become subject to a body of law that monopolies are supposed to observe. But that body of law has been chipped away at in the courts, as the Public Interest is only fitfully represented.