I do indeed believe that every death caused by an unjust and unnecessary war, of which Lincoln's was, is unjustified.
You are talking about deaths - not just battlefield "casualties."
I am talking about every single death caused by Lincoln's decision to invade the south. That would include battlefield kills, deaths from later wounds and later diseases, deaths from disease in general, deaths from starvation, and deaths from the displacement and abuse of the civilian populations. In total, that means somewhere in the 800-900 thousand range.
All military deaths, for all causes, totaled about 365,000 of the Union, and 135,000 for the confederacy (as per D.O.D.). Add in your 50,000 civilian "casualties" and you are just barely at half of your earlier estimate. And that includes your ever-widening definition of "wanton death."
Since you have divined that every death in the war was unjustified, then what was the purpose of describing them as "wanton." Like Rush says, "Words mean something." "Wanton" has a particular definition and you seem to use it to make emotional hyperbole. Your usage is "gratuitous."
I see it another way. Every death in the Civil War helped ensure a similar war would never again happen. Despite some of the more outrageous statements by your compatriots, indicating the the AZTLAN war is on the way and the second WBTS is imminent, the fact of the matter is that such thinking is fantasy time.