Ethnicities aka Stop Spawning Judith Ward in Mt Komorebi

There's a mod that takes care of that but it doesn't use ethnicities and i think that shouldn't be used... instead it only allows sims that LIVE in such neighbourhood to spawn in that neighbourhood community lots and streets... because that's what makes sense. People that live in one neighbourhood are usually the ones going to the local bar, library, etc... and different people live in the same neighbourhood. In my game, at least, there arent any neighbourhoods exclusive to any ethnic group...