stereotypes and their origins

Stereotypes are images people create in the heads about other people. usually groups of people, just because one person does something or dresses a certain way they suppose they are a certain way even when they are not. Most of the time this hurt people and it shoudnt happen but it still does almost everyday everywhere. An example of this in immigration is how most of the majority U.S citizens label mexican immigrants as poor people, without maners, and stilling, bringing drugs , crime etc... Some people also asume that all mexicans are illegal immigrants when they are not. Another example is how people assume that "blonde people are dumb" just because a blonde person did something wrong or messed up on something dosnt mean they are dumb. Its very sad that just because someone did something and is labeled some way, and you have something in common with them then you are labeled the same thing? even if none of you are.