How did the Harlem Renaissance affect American culture as a
whole during the 1920s?
Is it social ideology or political ideology

nativists tried to get rid of the immigrants as they thought they were going to ruin the u.s.  

byzantine empire is the answer i think you are looking for.

hope this : )

the second significant cause of the great migration was the desire of black southerners to escape segregation, known euphemistically as jim crow. rural african american southerners believed that segregation - and racism and prejudice against blacks - was significantly less intense in the north.