quality:corruption, structural:expansion
Relationship between Islam and Islamism

Islamists simply believe that their movement is either a corrected version or a revival of Islam, but others believe that Islamism is a modern deviation from Islam which should either be denounced or dismissed.

A writer for the International Crisis Group maintains that "the conception of 'political Islam'" is a creation of Americans to explain the Iranian Islamic Revolution, ignoring the fact that (according to the writer) Islam is by definition political. In fact it is quietist /non-political Islam, not Islamism, that requires explanation, which the author gives—calling it an historical fluke of the "short-lived era of the heyday of secular Arab nationalism between 1945 and 1970".

Hayri Abaza argues that the failure to distinguish Islam from Islamism leads many in the West to equate the two; they think that by supporting illiberal Islamic (Islamist) regimes, they are being respectful of Islam, to the detriment of those who seek to separate religion from politics.

Another source distinguishes Islamist from Islamic by emphasizing the fact that Islam "refers to a religion and culture in existence over a millennium ", whereas Islamism "is a political/religious phenomenon linked to the great events of the 20th century". Islamists have, at least at times, defined themselves as "Islamiyyoun/Islamists" to differentiate themselves from "Muslimun/Muslims". Daniel Pipes describes Islamism as a modern ideology that owes more to European utopian political ideologies and "isms" than to the traditional Islamic religion.

According to Salman Sayyid, "Islamism is not a replacement of Islam akin to the way it could be argued that communism and fascism are secularized substitutes for Christianity." Rather, it is "a constellation of political projects that seek to position Islam in the centre of any social order ".