I would dare to say that National Security should beat the First Amendment.
But the argument that TikTok bears any relationship to "national security" is ludicrous on the face of it. They're not posting nuclear secrets, they're posting short videos.
National Security Through Obscurity?
When has the freedom of religion, speech, press, or assembly ever been bad for the United States?
The government can make agreements with its agents to limit those, and can control its own information, but not other peoples'.
But the argument that TikTok bears any relationship to "national security" is ludicrous on the face of it. They're not posting nuclear secrets, they're posting short videos.