If all else fails for some reason and none of this works out...
STOP PAYING YOUR DAMNED TAXES!
We are literally funding our own oppression.
“Society in every state is a blessing, but government even in its best state is but a necessary evil; in its worst state an intolerable one; for when we suffer, or are exposed to the same miseries by a government, which we might expect in a country without government, our calamity is heightened by reflecting that we furnish the means by which we suffer...” ― Thomas Paine, Common Sense
You can’t really stop paying taxes. They will come get them.
If everyone did it en mass, they'd have to send A LOT of nibbas to collect 80 million+ citizens' taxes. I don't even think they have the resources.. but one thing is for certain, government would turn really ugly, real fast on it's citizens. Abstaining from paying taxes is the most peaceful resistance and government would definitely become the wrongful aggressor. No taxation without representation, remember?