Third option: fade into obscurity as an absolute world power, but become a powerhouse in something like finance and entertainment but not much else relevant to the rest of the world.
Source: England.
Source: England.
There are about 5 states that are red enough to even conceivably split off. But those states also have such low populations that they have disproportionate power that they would lose in a split. And none of them have any kind of state identity that would make up for that.
The only states with enough state identity to even consider splitting off, Texas, isn’t red enough to do it.
Very blue states aren’t all that blue (the presidential vote margins in 2024 were much smaller than they were for the reddest state) and they are far too integrated with nearby red states.