She describes an action in Florence, her hometown, in 1999. As a political protest, Moslems erected a tent on Cathedral Square and lived in it for 3 ½ months. Fallaci describes their behaviour, including how they would piss and shit on the church. She shows you that they were exhibiting not a mere lack of respect for her culture, but out-and-out contempt and disdain.
But people are afraid to react because if you criticise or object to their actions, you will be accused of being a racist. And everyone in Europe is afraid to be labelled a racist.