Until 90% of those states, by land mass, secede from them.
A few blue cities on a strip of land on the coast.
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You will see massive hypocrisy in that case. Those states that do not recognize the sovereign right of the United States would turn around and not allow large areas of their own states to succeed from them. There’s no way they could allow all that land to go. They need the water and natural resources and agriculture.
They need fire protection