Intra-Islamic propaganda outweighs anti-non-Muslim propaganda in frequency and intensity.

Evidence

Religious propaganda against non-Muslim religions is rare, and when it occurs it is due to specific, usually political and economic, circumstances. Religious propaganda between Muslim groups is much more common. This could be inter-governmental, e.g. between Abbasids and Fatimids, or later, between Sunnı¯ Ottomans and Shi ite Safavids. More fre­ quently, it arises from a radical challenge to the existing order. Obvious examples are the Kharijites, the Isma ilis, the Almohades, and the Wahhabis. — Bernard Lewis, From Babel to Dragomans, 451

Categorization

• QUESTION: Worth chasing: why would intra-Islamic polemics dominate over anti-pagan or anti-Christian propaganda, given that those existed in force? What counts as ‘outside’ vs. ‘inside’ religio-political space at various periods?