How did a war fought to bring "essential human freedoms" to the world fail to protect the home front liberties of blacks, indians, japanese-americans, and mexican-americans?

Homefront liberties weren't protected because blacks were still undergoing segregation, Indians weren't given any land that was taken from their ancestors and still lived n reservations, Japenses - Americans were put into camps for " their own protection" and Mexican-Americans were also being segregated against and were being hunted by the INS or immigration for illegally being in the country.