sexually explicit gestures as content-based regulations of protected expression. They argue that these provisions of the Ordinance are content-based on their face because they explicitly target adult entertainment. The Ordinance applies only to sexually oriented businesses, which are defined by the Ordinance with reference to the expressive activity performed inside. In response, Cumberland admits that the Ordinance applies only to adult-entertainment establishments. Nonetheless, Cumberland insists that the Ordinance is a content-neutral regulation of nudity viable under the secondary-effects theory of Barnes v. Glen Theatre, Inc., 501 U.S. 560, 111 S.Ct. 2456, 115 L.Ed.2d 504, and City of Erie v. Pap’s A.M., 529 U.S. 277, 120 S.Ct. 1382, 146 L.Ed.2d 265.
The Supreme Court has long held that regulations designed to restrain speech on the basis of its content are subject to strict scrutiny and are presumptively invalid under the First Amendment. See R.A.V. v. City of St. Paul, 505 U.S. 377, 382, 112 S.Ct. 2538, 120 L.Ed.2d 305 (1992); City of Renton v. Playtime Theatres, Inc., 475 U.S. 41, 47, 106 S.Ct. 925, 89 L.Ed.2d 29 (1986); Stromberg v. California, 283 U.S. 359, 368-69, 51 S.Ct. 532, 75 L.Ed. 1117 (1931). Content-based regulations “by their terms distinguish favored speech from disfavored speech on the basis of the ideas or views expressed.” Turner Broadcasting Sys., Inc. v. FCC, 512 U.S. 622, 643, 114 S.Ct. 2445, 129 L.Ed.2d 497 (1994). Since “it is the content of the speech that determines whether it is within or without the [regulation],” they single out certain viewpoints or subject matter for differential treatment. Carey v. Brown, 447 U.S. 455, 462, 100 S.Ct. 2286, 65 L.Ed.2d 263 (1980); see also City of Cincinnati v. Discovery Network, Inc., 507 U.S. 410, 429, 113 S.Ct. 1505, 123 L.Ed.2d 99 (1993). These regulations draw strict scrutiny because their purpose is typically related to the suppression of free expression and thus contrary to the First Amendment imperative against government discrimination based on viewpoint or subject matter. See Texas v. Johnson, 491 U.S. 397, 403, 109 S.Ct. 2533, 105 L.Ed.2d 342 (1989). Owing to the profound national commitment to robust, open debate, “[t]he First Amendment generally prevents government from proscribing speech, or even expressive conduct, because of disapproval of the ideas expressed.” R.A.V., 505 U.S. at 382, 112 S.Ct. 2538 (internal citations omitted). The government cannot favor one viewpoint over another, see City Council of Los Angeles v. Taxpayers for Vincent, 466 U.S. 789, 804, 104 S.Ct. 2118, 80 L.Ed.2d 772 (1984), nor can the government suppress an entire category of speech, even if the regulation is viewpoint-neutral within that category of speech, because the First Amendment bars “prohibition of public discussion of an entire topic.” See Consolidated Edison Co. v. Public Serv. Comm’n, 447 U.S. 530, 537, 100 S.Ct. 2326, 65 L.Ed.2d 319 (1980).
In contrast, content-neutral regulations are justified without reference to the content of the regulated speech and do not raise the specter of government discrimination. See Virginia State Bd. of Pharmacy v. Virginia Citizens Consumer Council, Inc., 425 U.S. 748, 771, 96 S.Ct. 1817, 48 L.Ed.2d 346 (1976). These regulations do not refer to expressive content and do not single out a particular viewpoint or category of speech for different treatment. Instead, all speech is treated similarly in an effort to advance significant government interests unrelated to content. A general ban on speech in the vicinity of a school is content-neutral, see Grayned v. City of Rockford, 408 U.S. 104, 119-20, 92 S.Ct. 2294, 33 L.Ed.2d 222 (1972), whereas an analogous ban on speech containing an exemption for speech relating to labor disputes is content-based. See Police Dep’t of Chicago v. Mosley, 408 U.S. 92, 95, 92 S.Ct. 2286, 33 L.Ed.2d 212 (1972). The former regulation requires no consideration of content before applying the ban, while the latter regulation requires consid