Why such a negative stigma about being from northern Virginia?

Yes, I see the same thing in some urban high schools. Unfortunately, AP level classes in some urban high schools are not as high level as in top suburban schools. Also, very few of the students in my local city school district earn college credit from the AP classes - I’ve seen some of the data. My kids took almost all AP classes in their city high school and still had plenty of time for activities, but in a top suburban high school they would have been overloaded with that workload.