The narrator expresses a belief that while he may seem to harbor a general disdain for a group of people, that is not the case. Instead, he offers assurance that his feelings will be more nuanced. Each person is destined to fail, but their failures will be distinct and personal.
This implies a complexity in relationships, where one might dislike others for their individual shortcomings rather than a blanket animosity. The emphasis is on the uniqueness of each person's failings, indicating a tailored approach to feelings rather than generalized negativity.