How did the supreme court erode african americans' freedom?

The correct answer to this open question is the following.

The Supreme Court helped erode African Americans' freedom with its decision on the Dred Scott case and its decision in 1883 of declaring the Civil Rights Act of 1875, unconstitutional.

These decisions severely hurt the civil rights of African Americans in the United States. The Supreme Court also added that the US Congress lacked the authority under the 14th Amendment to give protection to African Americans and that the states were the ones that had the authority to do so.

b. native americans them

the fact that could also be added to column b is that during world war ii, specifically between the years 1941 and 1945, japan expanded its territory towards the indonesian territory in what was known later as part of the "pacific war". in that time, japan could conquer the philipines, singapore,   borneo, central java, malang, cebu, sumatra and various other islands of the area, therefore expanding its territory for a brief period of time.