I don't think that religion is a neurosis any more than cleaning, organising, taking precautions against being burgled, or choosing a healthy diet is. I do think though that those things (and thousands of others) may be taken to extremes by people who have a tendency to neurosis. they can also be taken to extremes by people who have a psychological need to control others or used politically by unscrupulous people who want to convert the naive to their POV. intrinsically beliveing in god, eating healthily, being safe, keeping your surroundings clean and tidy aren't damaging, taken to extremes, they all can be.