Religious cults and even those religions we do not consider cults due to their size often use peer pressure and fear of the individual being outcaste to keep the grouping tight. Although this could be said to be a negative, it is also used in strengthening sports teams, armies and social groups. So it maybe wise to consider all this behavioral hold is used, what it is used for and who uses it before we condemn it use entirely.

Religions often put forth the idea that only someone who is a tyrant, ignorant or stupid would renounce their particular god or gods. Many religions in some form or another state this.