This report has a breakdown of the demographics of surveyed city mayors on their thoughts of the police handling of the riots. A different way to look at the topic. There is a link to the publication as the website opens up.
2020 Menino Survey of Mayors Report on Policing and Protests | Initiative on Cities
— Read on www.bu.edu/ioc/2021/01/27/2020-menino-survey-of-mayors-report-on-policing-and-protests/