Final answer:
Asian Americans were negatively affected by the Supreme Court's decision on Korematsu v. United States, which upheld the government's decision to intern persons of Japanese ancestry during World War II.
Step-by-step explanation:
The minority group that was negatively affected by the Supreme Court's decision on Korematsu v. United States was Asian Americans. The Supreme Court upheld the government's decision to intern all persons of Japanese ancestry on the grounds of national security during World War II. This decision resulted in the forced relocation and internment of around 120,000 Japanese Americans, many of whom were U.S. citizens. The ruling did not strike down the internment policy, but it did deem the classification of people by race as unconstitutional.