Am I supposed to tell my government to block American apps so that I can compete with American apps or on "national security" grounds? Because this is the trend American's will see. And if Zuck is reading this, you're shooting your own foot. What do you think is gonna happen? You're pitting the government against TikTok because your company cannot compete fairly. You think you'll win like this? Your Facebook/Instagram will get banned in future by other democratic countries in future because of the precedent you're going to be setting.
Let China do it's thing. It may very well turn out that their way of governance is better. Losers stick to old ways, if it turns out it's the superior system, they'll clearly be better.
But for a system to be proven takes decades/centuries. As long as China does not force it's system, it's fine in my eyes.