That's not true. That is taking bits and pieces of real things then inventing a false story around it. Lincoln didn't have a choice when it came to freeing the slaves because the south positioned itself for war pretty much immediately after Lincoln was sworn in. They did this because of the Lincoln-Douglass debates where it became clear that Lincoln would free the slaves if he was elected. After the south went into revolt, Lincoln had no choice but to take a hard line stance.
As far as the sending back to Africa thing, you have to consider the context. He talked about that way before he was elected as a possible solution in areas who would not accept free black people existing in America. Basically, he spoke to his audience. He spoke of white supremacy while in the south, but sung a completely different tune when in the north. The purpose was to try to make his plan to free the slaves more appealing to his audience. LBJ did the same thing when talking to southern democrats trying to get them on board with the civil rights act. LBJ would always refer to black people as "niggers" when talking to southern democrats. It's just playing to the audience, nothing more.
If Lincoln were to go into the south talking about making black people citizens, they wouldn't have even listened to what he said. So he tried to sell them on the idea that if the slaves were freed, it's possible they wouldn't be freed into their states, they'd just go away. But it was all just bullshit political rhetoric in the end. "Honest Abe" was a politician just like any other. He had no problem telling people what they wanted to hear in order for him to sell them on his goals. That's why there is so much Lincoln said that sounds extremely racist if you don't consider the context of the quotes.