Bias refers to the act of forming the impression about a person/entity first and then evaluating his/her comments or actions. This way you judge the person whether or not he says/does something, and irrespective of how he says/does something. It's an attitude that doesn't allow you to gain a new impression about another person/group, even if their nature/actions are different from the past.

Normal or sane behavior would be to give a person/entity a clean slate, and let their actions and words define their role. That way, if a person changes his/her ways, you are looking at the new person and not using the past to judge them instead of the new change that people are capable of. And a changed person is essentially capable of repairing the harm done due to his/her past, and then do some more good.

- Kaleem Aziz.