For my position on why your position is absolute nonsense, I'll provide you with a link to Chief Justice Chase's own words.
You should also study Texas v. White if you think the part I bolded only applied to Texas. Your main problem is that you assume that not putting Confederates on trial and Chase thinking that the trial was a waste of time is evidence that they believed treason did not occur. This conclusion is contradicted by their public statements and by their court rulings which you have chosen to dismiss for arbitrary reasons. I'm over those arbitrary dismissals. Have fun with that.War, therefore, levied against the United States by members of the Republic under the pretended authority of the new state government of North Carolina, or the new central government which assumed the title of the "Confederate States", was treason against the United States.
Shortridge v. Macon, 22 F. Cas. 20, 21 (C.C.D. N.C. 1867).