Title: Sitting In Starbucks While Black
Reason: User warned: Ignoring context given in OP and arguing in bad faith.
The only real backstory is that people saw them just sitting there. Sure, they didn't do anything. But my wife has called the police on people who are just sitting there because they've previously been banned for things they did before. So people seeing that didn't know why they were being taken out by the cops then either.
Link: https://www.resetera.com/threads/sitting-in-starbucks-while-black.36051/#post-6728796
Archive.org: https://web.archive.org/web/20180510211848/https://www.resetera.com/threads/sitting-in-starbucks-while-black.36051/
Archive.is (legacy): https://archive.is/BML60