Wrong, Lincoln wasn't for war, he was for maintaining the Union at all costs. He was even willing to allow the Constitution to be amended to allow eternal slavery if the slaves states would remain in the Union.
That is what Lincoln said. The problem is that Lincoln lied. You couldn't trust what Lincoln said. Lincoln in his 'house divided' speech said:
"Under the operation of that policy, that agitation has not only not ceased but has constantly augmented. In my opinion, it will not cease until
a crisis shall have been reached and passed.
A house divided against itself cannot stand. I believe this government cannot endure, permanently, half slave and half free....
I do expect it will cease to be divided. It will become all one thing, or all the other." (The Annals Of America, Vol. 9, Encyclopaedia Britannica, Inc., 2003, p.1)
Lincoln was not willing to let slavery exist anywhere in the U.S. But with that then 13th amendment, he was willing to support it just to stop the South from seceding. He knew he could promise the South slavery forever in the South. But he knew a war would settle the issue. "a crisis shall have been reached and passed"
William Seward, a radical abolitionist, who would be chosen by Lincoln as his Secretary of State, said also:
"Thus these antagonistic systems are continually coming into closer contact, and collision results. Shall I tell you what this collision means? They who think that it is accidental, unnecessary, the work of interested or fanatical agitators, and therefore ephemeral, mistake the case altogether.
It is an irrepressible conflict between opposing and enduring forces, and it means that the United States must and will, sooner or later, become either entirely a slaveholding nation or entirely a free-labor nation." (The Annals of America, Vol. 9, p.33)
Lincoln was all for war as proved by his own statements and by his choice of Seward for his Secretary of State. This is why the South were not fooled by his so called support of the then 13th amendmant. This is why they continued with secession.
Quantrill