People may settle in neighborhoods where people of similar sympathies may already be living. This is a choice. Excluding people from neighborhoods through the judicial system or contractual language is institutionalized racism. It was not so long ago that devices such as this were used to exclude Jews from places like Kenilworth, IL and Grosse Pointe, MI.
Trump: Middle East would be more stable if Saddam, Gaddafi still in power (Reuters)
from the article: Supreme Court backs Jews-only housing in Jaffa neighborhood