The most common denominator in mental ill-health is an underlying sense of fear and guilt. Given that, seeking to alleviate these feelings by becoming an ardent and fervent proselyte for something labeled Good by authority creates a sense of purpose and belonging; which is what alleviates the fear and guilt, as it creates the feeling that you belong, are part of something and not alone with your anguish. It is very common among the groups suffering personality disorders that an individual have belonged to dozens of different groups, parties, societies, churches, and so on. They find one that attracts them, is invited and accpeted, quits their old one completely, then after a while their personality disorder creates conflict, and they start searching for the next group since the present one "betrayed" them. They are in effect looking for what their problem is outside of themselves, which never works: hence the reliance on SSRI, neuroleptica et cetera.