I didn't, I simply wondered how his postwar perspective compares with his prewar position. As mentioned above, it is called critical reading.
"That being the case Lincoln nor any Northern state said before the start of the war they would fight to free the slaves"
Never said they did. That is your standard response to the assertion that the southern states seceded to protect slavery.
"no Southern state said they fight to keep the slaves"
No, the southern states just said they would secede to keep the slaves. It was individual politicians, newspapers, snd various fire-eaters that said they would fight to keep the slaves.