Both sides did wrong.
What family would sue to buy a home in a neighborhood that doesn't want "their kind"? If *I* weren't welcome in a neighborhood, I'd choose another neighborhood. And can't the seller choose to whom they want to sell their home?
On the other hand, this reminds me of the racist Palestinians, who want Joooooos out of "their" neighborhoods.
My goodness there are a lot of people here that keep the white sheet just behind the front door....