alt Hacker NewsIf they want to they'll do that under any pretense they can get away with. See the current administration declaring intent to treat pro-LGBT speech or anti-fascist speech as indicative of participation in terrorist groups.
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.
Right now you can in fact express pro LGBT or anti fascist opinions despite the administration's efforts to stop you precisely because there are no such regulations.
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.