Who lost the most as a result of the compomise of 1877?

The most significant loss resulting from the Compromise of 1877 was experienced by African Americans in the South. The agreement effectively ended Reconstruction and led to the withdrawal of federal troops from Southern states, which enabled white supremacist groups to regain control and impose Jim Crow laws. This resulted in widespread disenfranchisement, segregation, and violence against Black communities, undermining the civil rights gains made during Reconstruction.