Whiteness is at the heart of racism in Britain, so why is it portrayed as a Black problem?

In 2020, two police officers in Hackney strip-searched a 15-year-old Black girl at her school. Police conducted the search of this child, known as Child Q, without the consent of her parents, without an appropriate adult present (despite this being required by the Police and Criminal Evidence Act 1984), and with the knowledge that she was menstruating.