"One country" in theory only, definitely not in fact.
I'd say with the divisions and now the insanity coming into the mix i.e. QAnon, and etc etc, I would not say that "the days are numbered", I would say "It's about time".
"They" are not giving up, and "we" are not giving up, so then do what every parent does when the children act up, send them to their respective rooms. Donald, you go to your room, and Joe you go to your room.
I mean really.... MUST we deal with these crazy people? Must we insult our very intelligence? Must we pretend that this is normal or that they are normal, or that anything they do is normal, or that they are anything America as history has proven America to be?
Heck.... even a pandemic could not untie us but instead brought out even more insanity and even more insane people.
Yeah, I say it's time to divide.
Lets give our side the infrastructure and the Build Back Better and the vaccines and the climate control and the science. And let the other side have their coal and pot filled roads and their sickly dying people and their fear to wonder too near the edge of the earth hence they may fall off.
Give "them" what the want and, well.... then let us divide.