Another scenario is a split between those who live off the government (including bureaucrats) and those who do not (and foot the bill). I can see plenty of GS-#'s that will not hesitate to support the use of force against those who will not subsidize their salaries and retirements. It's not only the "welfare" contingent.
Considering what has been made public recently about the higher total wage/benefit packages that government workers get compared to privately employed workers, instead of saying "taxpayer vs. non-taxpayer", a better comparison is "people who get a check from the government vs. those who don't."
Not as succinct, but more descriptive of what is actually taking place already. Those highly paid federal and state and local workers do pay taxes, but their pay packets have to come from other taxpayers who do not reap the same generous rewards.
Who are the servants, and who are the served?