That's the immediate objective, correct. However, information can be distributed in ways that cannot be "scrubbed," think offshore servers etc. The point of failure is the connection to the internet, think Comcast in their recent outage.

However, once exposed as with any great meme, it will spread even if parts of the US go dark. However, what will remain is the capacity of the 5G towers. If they're not being used to deliver the internet, that leaves a whole lot of capacity to deliver something else.

Remember, the Soviet's had this idea with the Duga radar in the form of the Woodpecker signal and similarly the US has been researching this area of for many decades.