Bias
It doesn't matter who you are, it doesn't matter what beliefs you have, everyone is biased to some degree. It is impossible to judge everyone "fairly." Just as how even if you don't have a favorite color, you'll still prefer some over others. The same way you'll like some hairstyles and dislike others. The same can said for anything including controversial topics such as skin color, gender, hair color, or eye color. Maybe even bone structure, body shapes or age.
Everyone is biased, change my mind.