Original sentence: Some scholars have argued that only those who speak Persian or closely related dialects should be classified as Persian; other scholars, however, argue that the term has historically been used for all ethnic groups in Iran, regardless of language or other factors
Edited sentence: However, it is obvious that this approach to ethnicity in Iran is misleading, as historically all ethnic groups in Iran, including the ‘Persians’, irrespective of their origin, language, or religion were always referred to, collectively, as Iranians (Irani).While some scholars, mechanically identifying the speakers of Persian as a distinct ethnic unit (the ‘Persians’), exclude those Iranians who speak dialects of Persian, or other Iranian dialects closely related to Persian