Rebellion you say. All right, let's argue it your way. The Founding fathers, including Richard Henry Lee, signed the famous “Declaration of Rebellion” on July 4, 1776. All the signers were rebels.
Did you know that his great nephew was also called a “rebel.” Did you know President Lincoln referred to the fighting as “rebellion.” Do you know the official name for the 70 volume ORs is: The War of the Rebellion: A Compilation of the Official Records of the Union and Confederate Armies.”
So both Lee's were rebels. There was not much daylight between them.
And not much daylight between them and that other rebel: George Washington.
Well... except that some Lost Causers -- DiogenesLamp comes to mind -- get very upset when you name the Civil War a "rebellion".
The difference is our 1776 Founders cited a serious "long train of abuses" but 1860 secessionists could only complain of... well, possible restrictions on slavery.