Why judge by appearence/race/gender/hat size/caliber of nasal page?

I hate the green leafy people because some are stupid. Not like the blue crunchy people because one of them gave me a dollar. The purpleish gray people are also bad because they aren't my favorite color and I also think the orange smooth people are bad because one of them stole my TV. The red and gold gilded peope are also bad because some of them eat (insert domestic animal here). The really light in shade with dark growth people are also bad because some of them smoke newspaper. Are you getting the point yet? So why do you think people stereotype?