Why do we discriminate others?

We discriminate others because we think that doing it we are going to feel better with our self but it is not true doing it we are going to hurt others feelings and also ours. Discriminating we only win the simple thing of having rage, jealously, and a lot of evil thoughts that hurt us and have a very bad result, although we are all different and we have to respect each other and don’t exclude and isolate people just because we want. ¡DON'T DISCRIMINATE OTHERS!