Supreme Court of the United States Justice Clarence Thomas opined couple months ago discussing big tech censorship quite extensively. The case was regarding whether Trump was allowed to block people on Twitter and it being a 1st amendment violation. While the case was declared moot as Trump left office, Justice Clarence Thomas took the opportunity to discuss censorship. How politicians aren't allowed to block users on big tech but big tech is able to block and ban politicians and government employees and how this creates a weird power dynamic.

I would highly recommend reading his opinion:

https://www.supremecourt.gov/opinions/20pdf/20-197_5ie6.pdf

Here's a few excerpts:

> "But whatever may be said of other industries, there is clear historical precedent for regulating transportation and communications networks in a similar manner as traditional common carriers. Candeub 398–405. Telegraphs, for example, because they “resemble[d] railroad companies and other common carriers,” were “bound to serve all customers alike, without discrimination." ... "Internet platforms of course have their own First Amendment interests, but regulations that might affect speech are valid if they would have been permissible at the time of the founding. See United States v. Stevens, 559 U. S. 460, 468 (2010). The long history in this country and in England of restricting the exclusion right of common carriers and places of public accommodation may save similar regulations today from triggering heightened scrutiny—especially where a restriction would not prohibit the company from speaking or force the company to endorse the speech." ... "The similarities between some digital platforms and common carriers or places of public accommodation may give legislators strong arguments for similarly regulating digital platforms. [I]t stands to reason that if Congress may demand that telephone companies operate as common carriers, it can ask the same of ”digital platforms." ... "For example, although a “private entity is not ordinarily constrained by the First Amendment,” Halleck, 587 U. S., at ___, ___ (slip op., at 6, 9), it is if the government coerces or induces it to take action the government itself would not be permitted to do, such as censor expression of a lawful viewpoint. Ibid. Consider government threats. “People do not lightly disregard public officers’ thinly veiled threats to institute criminal proceedings against them if they do not come around.” Bantam Books, Inc. v. Sullivan, 372 U. S. 58, 68 (1963). The government cannot accomplish through threats of adverse government action what the Constitution prohibits it from doing directly. See ibid.; Blum v. Yaretsky, 457 U. S. 991, 1004–1005 (1982). Under this doctrine, plaintiffs might have colorable claims against a digital plat- form if it took adverse action against them in response to government threats. The Second Circuit feared that then-President Trump cut off speech by using the features that Twitter made available to him. But if the aim is to ensure that speech is not smothered, then the more glaring concern must perforce be the dominant digital platforms themselves."

> "As Twitter made clear, the right to cut off speech lies most powerfully in the hands of private digital platforms. The extent to which that power matters for purposes of the First Amendment and the extent to which that power could lawfully be modified raise interesting and important questions. This petition, unfortunately, affords us no opportunity to confront them."
The last 2 points are important as Justice Thomas is basically saying "give us a case which brings up these two questions and then we will have a deep look."

One can even cite Amazon's recent censorship of SCOTUS Justice Clarence Thomas's own documentary as well as Eli Steele’s documentary as examples:

https://archive.is/aNv3B