Islam was the only part of the Orient that truly challenged European domination

Evidence

There were occasional instances of native intransigence to disturb the idyll, as when in 1638–1639 a group of Japanese Christians threw the Portuguese out of the area; by and large, however, only the Arab and Islamic Orient presented Europe with an unresolved challenge on the political, intellectual, and for a time, economic levels. For much of its history, then, Orientalism carries within it the stamp of a problematic European attitude towards Islam, and it is this acutely sensitive aspect of Orientalism around which my interest in this study turns. — Edward W. Said, Orientalism, 193

Categorization

• XREF: Gives the historical basis for why Islamophobia readings specifically center on Islam rather than the whole Orient — the lone ‘unresolved challenge.’
• corroborated: 2 independent passages support this claim — Edward W. Said, Orientalism, 193