(1) The City Council finds that the crass commercial exploitation of explicit sexual conduct through the public exhibition of obscene films and the sale of obscene publications and devices, and the use of so-called massage parlors and model studios for the purpose of lewdness, assignation or prostitution constitutes a debasement and distortion of a sensitive key relationship of human existence, central to family life, community welfare and the development of human personality, is indecent and offensive to the senses and to public morals and interferes with the comfortable enjoyment of life and property, in that such interferes with the interest of the public in the quality of life and total community environment, the tone of commerce in the City, property values, and the public safety; and that the continued operation of such activities is detrimental to the best health, safety, convenience, good morals and general welfare of the City of Philadelphia, and of the residents, citizens, inhabitants and businesses thereof. Accordingly, the City Council hereby declares such activities to be illegal as hereinafter set forth, and further, that such activities are, and are hereby declared to be and constitute a public nuisance, and herein establishes penalties for such activities.