Who said anything about secession? Last time, secession was the trigger for the war, because the issues being debated were tied to geography, but it is not necessary for a civil war to erupt. This time, the issues have nothing to do with a dispute over state laws or policies; it’s strictly ideological, and to the extent there is any geographical divide, it is as the article states: urban vs rural. It will be the “Clinton Archipelago” against “Trumpland”.
Tell the Liberals that we are allowing them to secede then show them a geographic area they can go to ( Cuba...a Naval blockade ) then cut off all resources and allow the immigrant gangs to take over.
I think the people will get sick of the Federal Leviathan and just leave the union. It is the simplest solution.