Here is what turned up immediately. I had been taught this as a child:

"...Lincoln appeared to be asking the once-oppressed to volunteer to remove themselves from the place where they had been oppressed, so their oppressors could breathe more freely. “He believed,” adds Hannah-Jones, “that free black people were a ‘troublesome presence’ incompatible with a democracy intended only for white people.”..."

https://www.dailysignal.com/2020/03/06/the-1619-projects-outrageous-lying-slander-of-abe-lincoln/

Oddly, I can't readily find his own words, is if they are being scrubbed.