No the formal inquiries have made that clear. That does not exonerate those Muslim men who have been involved in such practices but it puts the whole grooming scandal in the UK into perspective.
Some of the studies and prosecutions have displayed an over-representation of men from particularly Pakistani heritage in some types of child exploitation but government and police analyses caution that the data is poor and that where ethnicity is recorded most offenders are white.
To claim that any single ethnic group is predominantly responsible for operating grooming gangs is only supported by selective studies and that is contradicted by methodological critiques and official police data sets. Hence any conclusions that are drawn rely heavily on the datasets, the time periods, and the definition of "grooming gangs".
In short, it is complicated.