Predudice I think is in part learned behaviour and part evolutional ginetic programming. I think is a natural response and origional started as a defence mechanism. For instance if you were physicaly or emotionaly harmed by an individual, your brain would automaticaly catalogue facial expressions, body posture, clothing colour, manorisms etc. This back catalogue of memories could then be used in future encounters to judge wether or not it would be safe to commune with new individuals. This knowledge could also be passed on to younger individuals in your own group/family/tribe to make it more efficiant and prosperous in a resouce scarce environment.
Lets say a woman is walking home at night, she is raped by a man who is wearing dark cloths and a hooded top. After recovering from her ordeal she is mentally scared and afraid to go out. Now every time she goes out as a defence mechanism for self presavation she will be automaticaly predudice against people expressing the same manorisms, wearing the same sorts of cloths and hanging around the same darkened alleys of which she was attacked. She will undoubtedly then try to enforce that predudice on her children in the hope they will never have to suffer the same fate.
Now the child goes out one night and hangs around those darkened alleys, and the Mother finds out, she says she doesn’t want her daughter hanging around with those sorts of boys because there upto no good.
The child goes to school the next day, and a boy is wearing a hooded top and makes fun of the girl, she retaliates with a ‘anyway my mum says hoodies are only worn by thugs’, this escalates over the next few days and other parents become aware of the situation and also reinforce the childs predudice because the media has perpetuated the same image.
And there you have it, an age old defence mechanism is recycled and rebranded once again to be used as a method of attack instead of the wisedom to recognise and avoid a potentialy harmful but most probably a benign encounter.
Unfortunately in todays communities the vast majority of predudice is indeed used to attack and for the most part is born out of ignorance of something that is not understood or has not been researched.
So in my humble opinion:
THERE ARE NO RIGHT OR WRONG OPINIONS, THERE ARE ONLY OPINIONS.
ACTIONS BASED ON THOSE OPINIONS HOWEVER, CAN BE RIGHT OR WRONG.
ONLY FOOLS FORM THEIR OPINIONS FROM IGNORANCE.
OPINIONS SHOULD ONLY BE OFFERED ONCE ASKED FOR.
And:
AN OPINION SHOULD NEVER EVER BE FORCED UPON ANOTHER INDIVIDUAL.
(unless of course its the opinion that marmite is rancid!)