I'm not the one who's under the illusion that any of this stuff was legal. I have the answer to this. You seem to think it's a debatable point.
This was raw power.
What Lincoln did, didn’t do, the legality or illegality of any of it is, to me, in 2018, not very relevant. With a nation half in insurrection and at civil war, both Lincoln and Davis did what had to be done from their own perspectives. It’s easy to armchair General or armchair President what went down in 1861-1865.