It is important to overcome prejudice and treat everyone with respect.

A preconceived opinion or judgment about a person or group, often based on characteristics such as race, gender, or religion.
Prejudice is unfair to others.
She fought against prejudice.
His prejudice was clear.
racial prejudice
gender prejudice
religious prejudice
bias
injustice
discrimination
Don't prejudice someone based on their appearance.

To form a negative opinion or judgment about someone or something without sufficient knowledge or reason.
She tried not to prejudice the outcome.
Do not prejudice others unfairly.
His words prejudiced the jury.
prejudice the jury
prejudice someone unfairly
prejudice the outcome
bias
prejudge
discriminate