There was no rebellion. Louisiana seceded, Louisiana didn't "rebel" because a) Louisiana was, and is, sovereign, and b) Louisiana made their own decisions to join, and to leave, the Union. People don't "rebel" against the People. Ergo, there was no rebellion.
Louisiana's decision was taken a pay grade above the Union and the Constitution -- it was taken at the People level. Only God gets over that.
How does “insurrection” fit in then, as the Constitution addresses?
Yes there was.
Louisiana seceded, Louisiana didn't "rebel" because a) Louisiana was, and is, sovereign, and b) Louisiana made their own decisions to join, and to leave, the Union. People don't "rebel" against the People. Ergo, there was no rebellion.
But c) since their acts of secession were found to be illegal by the Supreme Court then their actions were a rebellion. Or insurrection, take your pick.
Louisiana's decision was taken a pay grade above the Union and the Constitution -- it was taken at the People level. Only God gets over that.
Of course it was.