Complex sentence: He is, however, sensitive to indications "that either he or his culture is being patronised or misrepresented," and he despises those who use their religion as an excuse for special pleading or facile rhetoric.
Split into simpler sentences: He is, however, sensitive to indications that he and/or his culture are being patronised or misrepresented. He also despises those who use their religion as a form of special pleading or to engage in facile rhetoric.