They have to behave like the Freemasons and Bolsheviks of the past. That means having secret cults, organizations, black market operations, illegal businesses like drugs & gambling that brings in money and if possible, the patronage of alienated elites and foreign enemies of the establishment. If you have secure sources of funding, then you can forgo the illegal business part.

The LTTE was a nonwhite revolutionary army but their funding structures were elaborate and fascinating, well worth studying. They had shell companies, front businesses, faux charities, and even a billion dollar hedge fund to their name. Having large amounts of cash flow through a diversified set of businesses legal and illegal is key. Dr william Luther Pierce had been on the right path to achieving this but sadly died before the internet could make his organization truly flourish.

You have to bribe police and politicians. Arrange blackmail operations against high officials and politicians and get these compromised people in positions of power. Only then will you get the police, the FBI and the rest off your back.

People think sabotage of this sort is inaccessible but it's been done by many organizations, Scientology comes to mind as a particularly high profile one. More relevant to this cause, the NSU in Germany had tons of insiders in the domestic security apparatus that helped them slip by for many years.

As for the leftists, yeah they're a pack of nihilistic imbeciles but they're also pussies. Its one thing to say i'll take on the police and quite another to do it. They need a push

Could larp as a leftist and set off some sparks then run off. Masks and gloves being socially acceptable is a blessing.