Then let's do it literally. Throw New England and downstate New York (about 30,000,000 people, 10% of the whole who make the other 90% miserable) out of the Union and force liberals in other parts of the country to leave for New England or Canada. The Marxists have captured half of America's voters with their bullshine and their puppet candidates -- now it's time for them to leave, and take their spoil with them.
Boot them out. All of them. Expelling the offending States, and introducing the Ostracon (ostracism) to expel the rest, will give us social peace and cohesion we deserve, and confine liberaldom to the hellhole it deserves.
If the issues between us were neatly geographical, I think we'd be further along the road to secession than we are. There are two fundamentally opposed visions of America at present, and only one can survive in a single nation. But the division does not appear as a line on a map, but in clusters and dots. Kind of like Bosnia. That's encouraging, isn't it?