alt Hacker NewsBecause this is not about the first amendment? This just happens to be a company that runs a social network. Congress regulates commerce with foreign nations and made the decision, as it has in many other cases, that a foreign nation can not be the beneficial owner of TikTok. TikTok then made no effort to divest, giving away the game if you want, and predictably lost this challenge.
The arguments presented to the SCOTUS and the opinion itself are totally contained within the context of the First Amendment. No one is even arguing about anything other than the First Amendment and the exceptions permitted to that amendment.