[Ryzorian]

Stereotypes exist partly because enough people fit it to have it become such a thing. "Dumb Jock" for instance, there are alot of Dumb Jocks, both from my highschool days and later in colloge. That doesn't mean every person in sports is a "dumb jock" it just means there were enough of the actual ones to creat the stereotype in the first place.

Stereotype can be construed as an archtype. For instance, Stars Wars is full of "archtype" characters that fit specific "identities" or "stereotypes".

Racial stereotypes go deeper than just race. The British have stereotypes about them, so do the French, the Germans, the Japanese as well as the Americans, in fact, Americans have several, most not very flattering.