The question has been framed in the streets: is a government that impoverishes healthcare and nutrition, flouts the law, enriches its officials, imprisons babies, and kills its citizens worth the money it collects, much less the respect and obedience it demands?
Democrats have nothing to lose by shutting down the government to force the majority party to respond to these questions and the one that looms over all: what, if any, is the political and moral future of the US?
The red states are net takers compared to federal. Taxes paid. In this hypothetical civil conflict all sides are materially worse off but the south would be worst by a margin. Material deprivation by the general populace can end a war, but it doesn’t always.
See Russia in Ukraine for an example.
Where the lines are matters, whether Ohio and Michigan are in the NEUS or the south makes a big difference in population and industry.