&gt; You don&#x27;t feel that a city has the right to enact an ordinance keeping black people out even if it made them feel safer (I assume)<p>Your example is specifically barred by the Fourteenth Amendment of the U.S. Constitution, as decided in Buchanan v. Warley, 245 U.S. 60 (1917), and Shelley v. Kraemer, 334 U.S. 1 (1948), as well as Title VIII of the Civil Rights Act of 1968, codified at 42 U.S.C. 3601-3619, aka &quot;The Fair Housing Act&quot;<p>Because it used to happen.