Answer:
They violated their right to a fair and just trial
Explanation:
That is our 6th amendment
African Americans lost the voting rights they had in Reconstruction but regained them from the Voting Rights Act of 1965.
In the early 1900s, African Americans wanted to leave the south because of poor economic conditions (share cropping, etc) and racial discrimination. Slavery had just been abolished in 1865, so people hadn't quite accepted the idea of racial equality. It can be argued that we still haven't.
Because no one was taxing them on the boats