Emancipation in the North wasn’t the quick and angelic process that people today like to pretend it was. And it was often accompanied by black code laws that discouraged free blacks from settling in the North. Lincoln’s own home state of Illinois had antebellum black codes.
Yup, and they were really vicious. They could legally sell a black person into slavery if they stayed too long in Illinois.
Lincoln’s also pushed in his home state of Illinois that freed blacks could not settle there or that black could marry whites. Lincoln didn’t like slavery but he also didn’t like blacks.