Bob: I see nothing wrong with critiquing or even mocking someone's beliefs. Christianity is a belief system. That is quite different from being gay or having black skin. People can't change their ethnicity or sexual orientation. However, they can change their belief system.
VR: Doesn't this presuppose a distinction between free actions, for which we are morally responsible, and characteristics we can't change, for which we are not responsible. This seems like a distinction that New Atheists insist on collapsing, such as here?