It depends on the context. If someone is openly hostile in a public setting, then no. They're probably an asshole. If they mock religion in private, or on Face

It depends on the context. If someone is openly hostile in a public setting, then no. They're probably an asshole. If they mock religion in private, or on Facebook or some other stupid thing, whatever. A lot of people have negative feelings about some religions or political groups, but most of us manage to be polite and professional when we go outside.