I've observed similar problems in apartments in eastern Mira Mesa (part of San Diego). It went "section 8" and immediately attracted a community of drug users and thieves. Lots of domestic violence calls for the PD.
We have a similar problem in my area of Idaho. Large swaths of trailer parks originally established to build enough population to qualify for state liquor licenses. Today, they are inhabited by the welfare class. My wife is a police dispatcher. She knows the names and addresses of the frequent bad actors.
We had that in my last neighborhood, which started out as a bedroom suburb for people with good jobs, with about 80% white and 20% POC managerial and professional peoplegovernment employees, doctors, accountants, etc. Then the county built a new schoolaaaand the helpful Democrats bussed in poor black kids to the school so that it was NOT 50% black, NOT 75% black, but 95% black. Why? Why?
So then the white parents in that neighborhood either 1) moved away or 2) put their kids in private school. The black parents either 1) put their kids in the majority-white expensive private schools in the area or 2) had to drive their kids long distances every day to lower-cost private schools or 3) allowed their kids to go to the school with the ghetto kids and put up with drugs, guns, knives and police in the school, and have their children judged according to the overall behavior of the weakest links.
Naturally, every house that sells, now sells for less to POCs who are not managerial/professional. Many owners who fled the neighborhood rent out the houses they left behind to Section 8s, all POCs. The strip mall has replaced quality stores with chicken shacks and nail salons. People who didn't move out quickly enough lost $100,000 in home value.