I've always felt a boycott of the government was a key component. In fairness, they'll fund themselves with inflation, so it only goes so far, but they can't fight wars with numbers on a screen those dollars have to be accepted by arms manufacturers and suppliers of everything else you need to fight a war, be it against another nation or the domestic populace.
Most aren't going to do a full boycott -- you need to buy food which is taxed, need income for the money (also taxed), and certain other necessities. You could be a welfare bum to drain their coffers and really not contribute, but this is a bit like a hunger strike -- it hurts you and your opportunities a LOT more than it hurts them (and indeed they use your poverty to get votes, either for welfare programs on the left or policing on the right).
But you can do things like opt out of their currency, opt out of their retirement schemes (which invest in government debt, arms dealers and other agents of the panopticon, or usually both), and limit your spending on taxable items in the first place. Make more of what you need for yourself and your community, and generally don't be a hedonistic nihilist consumer, regardless of what the ad campaigns they love tell you to do.
You'll notice this also just happens to overlap heavily with living a healthy, frugal lifestyle. Yup. The system thrives on degeneracy, and when you eschew it, you help yourself, help your community, and fight the state's injustices.
As for progressives...well, they usually believe the state os am agent of good, or at least can be. A magnanimous king indeed is a good thing to have, but when they become a tyrant, there is nothing upright about continuing to fund them as if they hadn't. Not sure how to get that point across.
