Here is what Lincoln said:
"Why should people of your race be colonized, and where? Why should they leave this country? You and we are different races. We have between us a broader difference than exists between any other two races. Whether it is right or wrong, I need not discuss; but this physical difference is a great disadvantage to us both, as I think. Your race suffers very greatly, many of them, by living among us, while we suffer from your presence. If this is admitted, it affords a reason, at least, why we should be separated."
Yes, but he didn’t send them back, did he? Lincoln’s views were most likely very common among most whites at the time. But the fact is no blacks were ever sent back to Africa. The north certainly had it in its power to do so.