The Civil War freed millions of slaves, but caused new problems when reconstruction came around.
Both the North and the South were reasonable for the failure of reconstruction
The African Americans problems were being ignored by the North. Northern citizens were focusing on scandals and other problems
The South terrorized African Americans and government officials that supported Reconstruction. The group that did these acts is called the KKK or Klu Klux Klan. Also Southern citizens forced others to vote in their favor.
In my opinion the South killed reconstruction. They terrorized the blacks and didn't want them to have rights. The North might have been neglecting African Americans, but at least they weren't killing them
In conclusion, both sides were to blame. I believe that the South did more to kill the Reconstruction of The united States