A conservative is not always a reactionary.

So in the 20th century, you had this vicious cycle in the Arab world where you have a dictatorship suppressing its own people including the Islamic pious, and they're reacting in reactionary ways.

So there's a very sharp decline in liberal ideas in the Muslim world, and what you see is more of a defensive, rigid, reactionary strain, which led to Arab socialism, Arab nationalism and ultimately to the Islamist ideology.