FARA requires coordination with the foreign power. You are perfectly allowed to further its goals unless you have actually coordinated with them.
You have to actually be an agent of the foreign power. You can't be that just because you share their goals.
1. "We mean people who at that time qualify as agents under laws like the Foreign Agents Registration Act, we said "acting as" because it indicates a temporary employment status rather than an innate human characteristic."
2. "We are weasel-wording to target all people with similar acts to how agents would act, but who would not qualify under the law we want you to think we'd be drawing authority from."
According to who?
If that's according to the current us administration, then "qualifies as an agent" means "disagrees with the administration".
If they try charging Joe-Shmoe under FARA, there's still some chance of loss in federal courts.
The evidence in front of us (the malicious words of the person in question) strongly favors malice anyways.