Question

How did the Great Migration affect life for African Americans in many industrial cities?

African Americans were welcomed in the cities, where there was a shortage of wartime factory workers.
The African American population grew quickly, leading to discrimination and race riots in some cities.
Most African Americans, facing harsh conditions and unemployment, left the cities and returned to the South.

Answer 1

I'd say that this is how Great Migration affected life for African Americans in many industrial cities:
The African American population grew quickly, leading to discrimination and race riots in some cities.
The issues with racism and Ku Klux Clan especially came to be after this migration.