Balkanization, thru peaceful negotiations, so they get their commie utopia, and we get our Republic. Geographical boundaries drawn up. If you have a house and are living in the wrong area that you politically identify with, you can choose to stay and submit to their government, or you pack up and move to the newly Balkanized areas and start a new life with your people.

The other only option is to start killing them all. Nope. So, peaceful Balkanization seems like the only option.