Very good point. Air support of any kind would be unhelpful in a revolution because the government would, understandably, be reluctant to bomb the hell out of its own population/economic centers.
The "swamping" concept I was referring to was something of a thought experiment, e.g. imagine an out of science fiction effective speech broadcast to enough people that it doesn't matter that the police know "the people" are coming right now.
As for your general point, people who think about this sort of thing often focus on the old techniques like cells, one time pads, etc., subverting those listening in, etc. etc. Plus I'd add, just how effective do you really think governments are, especially against "non-crazy" people. That's the real danger I see, that "middle class" or thereabouts people like me get upset enough to take up arms, instead of the usual suspects like the Weather Underground. Note our "revolutionary" Founding Fathers, especially apropos this day after the anniversary of Declaration of Independence.
And there's a relatively new "leaderless resistance" concept where individuals not in close communications nonetheless take effective action. Again, see how "effective" for some value of effective Christoper Dorner, working alone, was. One man, or a small group, can be dreadfully effective nowadays.
The militarization of law enforcement doesn't mean much, e.g. look at how they completely loose there shit in the face of one disturbed, not very clever or effective assassin like Christopher Dorner [ADDED: there's a lot of cargo culting here; giving 10 police officer M16s/M4s, SAWs and grenades does not magically turn them into an US Army infantry squad]. At the other extreme, we the people can completely swamp them in a matter of hours, but of course motivating us to do that would be quite a trick.
"Advanced weaponry" is of no use without the will to use it. As an extreme example, a few nukes could terminate ISIS with extreme prejudice and collateral damage, but I don't know of any serious "hawk" even suggesting [WAS: advocating] their use.
I have grave doubts about your closing point, "a last resort if inequality continues at this rate"; is that so bad it's worth killing millions of people to merely attempt to fix it, with many and perhaps the most likely end results further emphasizing it? For that matter, who/what groups are going to start pulling triggers?