Your original point was that Virginia had the right to actually secede, under certain conditions.
The difference being that the first case involved secession by mutual consent with the remaining states and the second case involves a unilateral declaration of secession, which has no bearing as long as existing laws aren't broken.
You must not have been following - According to Madison, Virginia has the right to secede, when the rights of its citizens are denied/infringed.
- Virginia does not have the right to petition the FedGov to secede, but the right to secede.
BJ has backed away from Madison’s doctrine.