Can you explain your reasoning? Horrible crimes committed by foreign men against native children were covered up for political reasons in the UK. This is common knowledge.
In the case of Rotherham, I believe that most of those committing the crimes were not foreign; most were British born British nationals. Ethnicity is not the same as immigration status.
The question is: Would the crimes have been covered up by authorities if the predators were ethnically English and the victims were children of foreigners?
Anyone who's actually paid any attention to the many documented failings of the child protection services in those cases knows the answer to that question is "yes".