"According to a well-established principle of the Court’s case-law, there can be no democracy without pluralism. The Court considers one of the principal characteristics of democracy to be the possibility it offers for debate through dialogue, without recourse to violence, of issues raised by various tides of political opinion, even when they are troubling or disturbing. Democracy thrives on freedom of expression. It is for that reason that freedom of expression as enshrined in Article 10 is applicable, subject to paragraph 2, not only to “information” or “ideas” that are favourably received or regarded as inoffensive or as a matter of indifference, but also to those that offend, shock or disturb (see, among many other authorities, Handyside v. the United Kingdom, 7 December 1976, § 49, Series A no. 24, and Jersild v. Denmark, 23 September 1994, § 37, Series A no. 298). The fact that their activities form part of a collective exercise of freedom of expression in itself entitles political parties to seek the protection of Articles 10 and 11 of the Convention. (see United Communist Party of Turkey and Others, cited above, §§ 42 and 43). "