Like it or not, Pea, Lincoln's actions were not unconstitutional just because you say that they were. They were not illegal just because you say that they were. And you can repeat that they were unconstitutional and that they were illegal until the cows come home and that will still not change the situation. None of Lincoln's actions in connection with Sumter were illegal or outside of his authority as President of the United States and commander-in-chief.
And since you seem to like quotes from Secretaries of State then let me offer you this one.
"Firing upon that fort will inagurate a civil war greater than any the world has yet seen...At this time it is suicide, murder, and will lose us every friend at the North...You will wantonly strike a hornet's nest...It is unnecessary; it puts us in the wrong; it is fatal.." - Robert Toombs.
How's THAT for ignoring your secretary of state?
That is your assertion, and unsupported by anything other than the Republican party's unwillingness to hold him accountable.