Because slavery was still a problem and still wanted slavery for what it was back then and did not accept defeat in the civil war.
KKK
the Ku Klux Klan (KKK)
The most well know extremist group during reconstruction was the Klu Klux Klan or the KKK.
The KKK
Burn their houses, schools, and basically turn them into slaves again.
the KKK killed blacks who stood up for their rights so all blacks were afraid to stand up for their rights
KKK
Its failure to provide blacks with farm property of their own
Actual lynching by the KKK is very rare nowdays, but it was done often in the reconstruction era to intimidate Republicans into not voting.
Because of the KKK and its threats made the south fear death instead of helping with reconstruction
one way reconstruction was a failure is that the freedman bureau burn down the blacks school, meaning no freedom what so ever for the blacks.
The Ku Klux Klan (KKK) were responsible for the bombing of the Americans in the South during the Reconstruction Era.