What state do you think would bring slavery back? What state Would revoke anybodies vote? Those amendments did the job they were made to do and things are not suddenly going to return to the way it was before. It simply will decentralize federal power like it needs to be.
When an amendment is removed it would return the laws to the state prior to the amendment. Far too many people are slaves anyway so it might not make any difference.
You are dreaming if you believe it would reduce federal power in any significant manner.