The city displaying a cross on city property would indicate a preference by the city.
What they are doing in this case is interfering with someone's right to free speech on city property.
"Someone" doesn't have a right to permanently install a concrete structure on city property.
If city officials allow a Cross, they would also have to tolerate the erection of other and different religious symbols on city propery.
I'm all for eradicating the Muslim terrorist threat, but...
Regards,
Well then California better remove all of the “Sans” away from all their city names, like San Francisco, San Diego, etc.