The human brain cares just about as much about where propaganda is coming from as evolution has a goal in mind. With that, if the US wants to outcompete China on propaganda, then we've already lost. As long as there's a country willing to go one step farther than we will, we're fighting a battle we can't win.
You will have the 1st amendement now but soon China will destabilize your government even more than russia and if you don't get a civil war you get a chinese satellite fascist state and you think there will be a firsr amendement in any scenario where China brainwashes a significant number of americans strategically?
Honestly, you can only be one of two things, you have never actually read the full text of the constitution and you are brainwashed on tiktok or some other social media or you are an actual CCP troll. No in between.