That's utterly prepostrous. The least chance of success any US armed uprising would have is in large metropolitan environments (not that it would ever have any chance, period).
Once you're in your skyscraper, what will you do then, declare victory over the oppressors in D.C.? If you were actually any kind of credible threat, you'd have special forces helicopters landing on the roof coming down the stairwells and possibly also rappelling down the sides, and troops coming up from the ground. Elevators won't work, you're now stuck in a concrete and glass trap, congratulations. They'll sweep the building, kill you, then leave the way they came. End of your revolution. ...And if you're not a credible threat, N.Y. cops would arrive to sort you out (and they would.)
No, better stick to the deep forests of montana in your little mountain hideouts and dirt cellars packed to the brim with canned goods. How will you Che Guevara revolutionaries survive in the urban jungle of NY once power goes out (and it will, of course). No lights, no heat, no water or sanitation. When people can't go to McDonald's for food (or anywhere else for that matter), you'll have mass riots on your hand, not a coordinated fight against the government...
This is all delusional nonsense.