A Wizard of Goatse posted:

That is the mass public. Your shadowy technoninja superterrorist group is striking a deathblow against The System by murdering random loving people who have too big a flag on their front lawn, which they coulda done just as well fifty years ago, while the state now has a comprehensive list of everyone who tends sympathetic to your cause who is not yet themselves one with the night, the details on what they're actually up to every day, and a means to deal with them all simultaneously.

If you have equal spying and murder capacity to the government to contend with it on its own turf, and your command of the populace outweighs the state's to the extent that it's dangerous to be seen as pro-government, you're not 'building an organization' and operating in the shadows you either are part of the government or in the last few months of winning a civil war. What you're describing isn't a resistance to totalitarianism it's one totalitarian regime that's replaced another through other means resuming its predecessor's policies.