Do you find that a lot of younger guys won't date a black female?

I am a teenager. Growing up I have always heard my classmates say, "Black women are ugly. Black women are crazy. I'd rather date a Mexican or white girl than a black girl." That is literally what they would say all the way from elementary and into high school. Not to me, but in general regarding my race. It is so discouraging. It makes me really depressed. Is this really how people see black females?