They didn't have the
Patriot Act in 1989.
Add all the usual lolbertarian caveats about government tyranny, overreach, loss of privacy, etc; most of which I agree with. But the feds
do have the laws and the tools to stop them now, if you got them to focus on NLG again. All you need is a credible link to a terrorist organization such as Antifa.
I don't think you could boostrap it quick enough to shut them down next week, since investigations take time. Just spinning up a task force takes a while. But all it would take is a pair of injunctions and seizures, on their organization and their bank accounts respectively, while the feds sifted through the seized centralized CRM data.