The distributed nature of Wiki's makes them hard to "shut down", but they can be blocked and the editors/contributors can be harassed, arrested, deported, etc..

Is it paranoid to think this might happen in the U.S.? Now? No, I think it's become depressingly plausible. As I said, consider what might have happened if Musk had stayed in Trump's good graces. If you don't think such a thing is plausible for this administration, then what about the next, or the one after it? One that's a little bit more competent in making use of all the power that's just seems to continue being concentrated in the executive branch?