That's not the case today.
Today we have a thousand differences that go to the core of who we are... a ‘hot war’ would be insane. It's be like dying over which ice cream flavor was best - chocolate or strawberry...
Totalitarians and free people can't compromise. It's not possible.
The best choice is to peacefully divide the country. Pass a 'divide the country' amendment and let each legislature in every state vote on it...
Thanks for your reply. You are correct of course, but it will NOT happen.