Davis, his government, and those of its member states were belligerents in a sectional struggle for independence from the lawful authority. They were unable to make good on their claims and were forced to capitulate. Davis's actions, and those who led the failed rebellion, were treasonable.
There was no insurgency. But you knew that.
The Confederate States were not recognized as a legitimate government by the nations of the world,.....
Band wagon fallacy (argumentum ad populum). The young United States fought alone nearly as long as the Confederacy did, until France recognized our flag and began to offer concrete help.
....they were unable to defend the territory they claimed, and they were never able to govern many of the people they claimed as citizens.
Appeal to force -- another fallacy -- and teleology.
They were unable to make good on their claims and were forced to capitulate.
Restatement of the teleological fallacy and appeal to force.
Davis's actions, and those who led the failed rebellion, were treasonable.
Teleology again. Now prove treason. But then, you knew you couldn't when you wrote it, so -- add libel and slander to the pile.
A steaming pile. That turkey must have been good -- and big.
Why is that so difficult to understand?