>>>I think the core idea here is: this organization is doing bad things. By not supplying them with goods and services we can stop those bad things from happening.
Government programs NEVER just end, and certainly not do to simple supply disruptions. So they won't STOP doing bad things, they'll just continue to do bad things with even less resources, making the net effects even worse. Eventually you might end up with ICE detention centers that would make a FOB in Iraq look like a palace. All you need is triple-strand concertina wire, some 55-gal drums cut in half (for burning human waste), and a bunch of plywood.
Law of unintended consequences....