“Prejudice” is an “adverse judgement or opinion formed beforehand or without knowledge of the facts.
Having low self-esteem is a kind of prejudice. It is a prejudice against the self. Biases in your thinking about yourself that negate your own being. Biases that make you unhappy, anxious, stressed and distorted.
Thoughts that make you hate yourself.
Prejudices are enough to drive people to war. Prejudices against race, culture, religion, gender, and sexual orientation.
Prejudices against yourself are enough to drive people mad. Who wants to live like this all the time?