All 3 Uses

discriminate
in
The Watsons Go to Birmingham--1963
(Edited)

In the Northern, Eastern and Western states, African Americans often faced discrimination, but it was not as extreme and pervasive as in the South.
p. 207.4 *

discrimination = unfair treatment due to race
There communities and states passed laws that allowed discrimination in schooling, housing and job opportunities; prohibited interracial marriages; and enforced segregation by creating separate facilities for African Americans and whites.
p. 207.5
A number of organizations and individuals were working tirelessly to end segregation and discrimination:
p. 208.1

Definitions:

(1) (discriminate as in: suffered discrimination)
to treat people of different groups differently -- especially unfair treatment due to race, religion or gender
(2) (discriminate as in: discriminating taste)
to recognize or perceive differences -- especially fine distinctions
(3) (meaning too rare to warrant focus)