Of course, but it's a start. They aren't exactly running gulags. 10% committing 50% of crimes is a factor of 10 over-achievement, there's no reasonable argumen

Of course, but it's a start. They aren't exactly running gulags. 10% committing 50% of crimes is a factor of 10 over-achievement, there's no reasonable argument that the odd wacko prosecutor tips the scales this much. Counting the victims is another crude proxy, the coroner really does see every murder victim. And IIRC this shows roughly the same disparities in major demographics, in most countries.