As to those areas that had purported to secede, and were in armed insurrection against the Union and the Constitution, you would have us believe they still benefitted from some protections it provided?
Your arguments are nonsense. The only law that governed the the Union armies in the South during the war was the Law of War.
He wantonly raped its core tenets thus rendering it a useless document during his reign, which is by any other name throwing off the constitution.
The constitution continued to function just fine in the loyal states.
The fact that tens of thousands of private citizens in those states were imprisoned without charges for such things as political speech that was unfavorable to Lincoln, and considering that the civil authority in northern-controlled states and regions was in at least five cases disregarded to the convenience of the military (specifically the habeas corpus cases in Maryland, Massachusetts, Missouri, New York, and the District of Columbia - all of which Lincoln disregarded), that statement seems to be without validity.