I was really just trying to one-up sys's analogy, but I get your point. I think it would solve both your and Rage's objections if we switch it to:
Family A has hispanic neighbors who sometimes hang out on Family A's lawn without permission and sometimes sell drugs to their kids. Then those neighbors move out and a white family moves in next to Family A. White family then moves out and another hispanic family moves in. After new hispanic family moves in, Family A builds a fence around their property.
Happy?