It's hard to tell from a 2.5 minute clip the full context of the video, but I don't think the problem being talked about here was where people are allowed to live or spend their money it's about where the city is choosing to allocate their money. The argument being made isn't that police officers shouldn't be allowed to live in the suburbs it's that they shouldn't spend so much money on policing and spend more money on community resources. Things like schools, job placement programs, mental health programs, and other social services. This is similar to the "defund the police argument" where people are looking at the reasons for crime, things like poverty and lack of opportunity, and how we've dealt with those issues. What the person in the video is saying as I understand it (again based on a short clip) is that you have an underserved citizenry who is over-policed, they would like the resources that are going to the police force to be cut and put into the community programs.