For background,
https://en.wikipedia.org/wiki/Brown_v._Entertainment_Merchan... ("Brown v. Entertainment Merchants Association" (2011) ("ruling that video games were protected speech under the First Amendment as other forms of media"))
For background,
https://en.wikipedia.org/wiki/Brown_v._Entertainment_Merchan... ("Brown v. Entertainment Merchants Association" (2011) ("ruling that video games were protected speech under the First Amendment as other forms of media"))
I don't think there's any government involvement necessary here - Mastercard has some censorship apparatus (which they claim to be necessary for their brand's reputation), and they used it (apparently through pressure from an Australian group) towards video games.
This is really bad but I don't think it makes sense to believe a government was ever involved here. Of course, there should be laws put in place to regulate mastercard into a common infrastructure. They should not be able to deny processing a legal payment because of nebulous "brand reputation" reason.
In general? Absolutely - search 'Operation Chokepoint'.
There's a great summary in the middle of this (very long) article under that header: https://www.bitsaboutmoney.com/archive/debanking-and-debunki...
Mastercard could simply refuse service for those games in particular instead of demanding (through proxies) that the games be banned from Steam. There's a clear antitrust violation.