You are not insulated from the effects just because you don’t use it. If you use the internet, chances are you’ve read bot output.

i mean they were using the rather old wxwidgets

I doubt that the US restricts entry based on speech more than China.

You can tell that to

Ryan Lackey has traveled to countries like Russia or China[;] he has taken certain precautions: Instead of his usual gear, the Seattle-based security researcher and chief security officer of a cryptocurrency insurance firm brings a locked-down Chromebook and an iPhone that’s set up to sync with a separate, nonsensitive Apple account. He wipes both before every trip and loads only the minimum data he’ll need. Lackey has gone so far as to keep separate travel sets for each country, so that he can forensically analyze the devices when he gets home to check for signs of each country’s tampering.