...........AND, if you (the Supreme Court) cannot deal with this most momentous of all matters except the Civil War and the Revolutionary War then millions will come to believe there is no longer any use for a Union of States.
Arguably, if the Supreme Court ignores this case on standing or some other silly assed technicality they have Balkanized America, permanently.
If SCOTUS refuses to hear this case then they destroy themselves. What good is a 'supreme' court that refuses to address the biggest constitutional issue in maybe a century (Bush V Gore is the only recent competition but this is States vs States)? Why should we listen them on anything? States can and maybe will just ignore them in the future.