It is the policy of the city, in the exercise of its police power for the public safety, public health, and general welfare, for the maintenance of business and good government and for the promotion of the city’s trade, commerce and manufacture, to assure equal opportunity to all persons to live in decent housing facilities regardless of race, color, religion, ancestry or national origin, and to that end to prohibit discrimination in housing by any person, including real estate brokers, real estate salesmen and agents, owners of real property and lending institutions. (Prior code § 6.68.020.)