The concept of Changers in Iain M. Banks' "Consider Phlebas" presents a significant threat to personal identity and individualism. This fear stems not from notions of possession or soul theft, but from the way Changers mimic behaviors and appearances of others, which can undermine the uniqueness individuals cherish. This ability to adopt different identities raises concerns about the authenticity of self and how easily one’s individuality can be overshadowed or disrespected.

The Idirans recognize that the Changers’ capacity to transform and impersonate diminishes the value of individuality that humans uphold. The ease with which a Changer can disregard personal identity to wear another's facade feels like a violation of the core human experience. For many, this behavioral mimicry signifies a profound existential threat, as it challenges the essence of what makes someone distinct in a deeply personal way.