Hogwash. According to Islamic law, unbelievers may not build new places of worship nor repair already-existing ones. Church bells may not be rung. In various ways, the second class status of non-Muslims was pressed upon them: a special tax for the "privilege" of continuing to practice their faith, special clothes, prohibition from holding high government position, forbidding a Muslim woman from marrying a non-Muslim man but allowing the reverse, etc.
In practice, occasional Muslim rulers ignored these rules, and nowadays in some Muslim countries there is legal equality between Muslims and non-Muslims (on paper), but that is contrary to traditional Islamic law and attitudes.