According to an admittedly unscientific poll on Sean Hannity's website:
Yes- I would support a States right to secede and possibly move there: 72.83%
No – I would not support it but would let them go peacefully: 8.30%
No – I would call for Civil War to stop it: 18.87%
I am very surprised that such a large majority favor secession, even in this kind of a poll, even on a conservative talk-radio website. Opinion appears to be changing very rapidly.