Professor Alexis Jay, who wrote the report, said councillors seemed to think the exploitation, in which many of the perpetrators were described as Asian, was a one-off problem they hoped would go away.
“Several staff described their nervousness about identifying the ethnic origins of perpetrators for fear of being thought racist,” she said.
“Others remembered clear direction from their managers not to do so.”
Rotherham Council accepted that failures were not down to “front line social or youth workers who are acknowledged in the report as repeatedly raising serious concerns about the nature and extent of this kind of child abuse”.
Mr Kimber himself told Sky News he would staying in his post as he was “part of the solution”.
He said: “The report makes it very clear that I’m part of the solution to improving services, not part of the problem.
“The report indicates that during the last five years there have been very significant improvements, the last five years have been in my tenure as chief executive.
“One of the things the report does allow me to do is to reassure young people today, parents today, that where young people are in trouble, that we will take them seriously and we will put services in to protect them.
“I will not be standing down from my post.”