I wish people would realize that those stereotypes have been around for hundreds of years and were created by RACISTS people. The "Angry Black woman" the "Scary, dangerous black man" were stereotypes white people attached to black people to make us look sub human and bad.
I was reading a psychology book about race and stereotypes that explained how when a certain group of people have an image attached to them then others will begin to look for ONLY the stereotypes or ideas that justify the stereotype/image. They'll subconsciously LOOK for the Angry black woman or ugly black girl or scary black man or Asian who can't drive or racists white person JUST to justify their racists thoughts. In the meantime they can get into an argument with an angry white woman, get called a racist name by a Latino, meet a really nice black person and get into a car accident with a white man and they'll STILL believe the stereotypes they've been told!
I guess people haven't reached that level of common sense yet...