[lentulusgracchus]

Rebellion is defined as "open, armed, and usually unsuccessful defiance of or resistance to an established government."

The United States Government was no longer "established". It was constitutionally and lawfully disestablished by acts of the People of the South.

Its writ no longer ran in the South, the People having repudiated it, as it was and is their God-given right to do.

[Non-Sequitur]

The United States Government was no longer "established". It was constitutionally and lawfully disestablished by acts of the People of the South.

No it was not. Their actions were not legal.