Do you not understand how the federal reserve system works?
The beauty of a fiat currency system is that you can simply print whatever amount is needed and supply/demand mechanics siphon the value from their held cash no matter where they hide it.
Not paying taxes doesn't defund them. It may accelerate, by a few months, the rate at which hyperinflation hits, but we are already on track to be swimming in pools of federal reserve points by the end of June.