On why they keep labelling "ANTIFA" as a nationwide organization

The government keeps labelling "ANTIFA" as a single, nationwide terror organization because this creates a legal narrative wherein antifascists can be prosecuted using pre-existing laws against terrorist organizations. Such laws cannot be made to stick when you're separately trying to sue individual tiny antifascist groups.

These people are not idiots. They want to kill all resistance to fascism and they're trying to use the law to do so.