Real theological differences, not only prejudice, fueled Christian hostility toward Islam.

Evidence

The Christian case was not, of course, built out of nothing. There are real differences between the two religions of such a character as to exacerbate the irritated incomprehension each has for the other. In particular the extensive contrast between the religion of indulgence and the religion of asceticism has always been a key consideration in the Christian attitude. — Norman Daniel, Islam and the West, 1481

Categorization

• XREF: Echoes the reader’s interest in how real underlying differences get amplified into totalizing hostility, similar to the ‘real differences’ framing in cross-cultural moral panic material.