You don't ban the users or the internet, you make it illegal to do shitty psyops on the public. They were making plenty of money on chronological friend feeds.
Anonymity online seems the ultimate double edge sword. I prefer privacy over government prescribed safety.
You just can't let a government get this bad, and the set of rules and procedures you need to reign in a tyrant are pretty different from the ones you need to keep a system stable and functioning under normal operation.
Had a previous US administration thought that the US is a stable and functional democracy that can be entrusted with such a law, you will be in trouble.