No EBT funding would equate to instant riots in every major city.
Perhaps, but think of it the other way: what if the governor treated it like an invasion and acted appropriately, calling on the National Guard to [forcibly] seal the border and then demanded help from the Federal government under Art IV, Sec IV and then that happened?
It'd give a lot of emotionally-charged credence to the claim that the federal government was retaliating against the State — and that would be some damning allegations considering the Constitution's definition of Treason.
The governors can get on tv, radio etc and point back to the democrats what they are doing. They just keep letting everything slide.