I dont see how the union endures in the future. Theres way too much irretrievable hostility between left and right. After all, who wants to share a country with those whose basic intention is to destroy it? Better to devise a way to split it into two entities.
I dont see how we can endure any longer either but a split will only make us smaller in size and we will be surrounded by bad guys who want to kill us. We see other countries that deal with that and it appears to be daily survival for them also
I see a structure similar to Canadas relationship with Quebec Province; semi-autonomous regions within the greater United States.