On, there is saying in Hindi " sattar chuhe kha kar billi haz ko challi" . I think your sermon fit into this saying. When muslim were powerful they killed, raped and destroyed everything of non believers and when they have become weak due to invent of technology they are talking of peace! I feel same was done by Mohumad also when he made a treaty with macca or madina to buy time
If muslim donot discuss their religion and Prophet and also donot condemn the satanic verses their sincerety cannot be trusted