why people prejudice against one another?
456384
this is natural with every one due to their environment in which they r brought up.
356684
Plain and simple: people are selfish.\n\nPeople believe their way of life is superior than other ways of life.\nTherefore, if your race, religion, class, or culture is different from mine it is inferior.\nAs long as we live in a world where there are differences, there will always be prejudices, discrimination, hatred, and ethnocentrism.
626475
It's very simple.  Some people are tolerant (of people and ideas that are different) and others are intolerant.  Most intolerant people want others to be like they are (and therefore be intolerant of those who are not like they are).  Ironically, many of the intolerant are more (traditionally)religious and, conversely, many of the tolerant are less (traditionally) religious.
1009025
As long as people exist, there will be racism. People tend to dislike anyone that is different from them. So, whether through ignorance, cruelty or whatever, as long as there are different races there will be racism. I think it is  just human nature to shun something or someone we don't understand. Hopefully, one day we will get past it but I don't think so.
93382
One of the simpler reasons is personal choice. The majority of people prefer to associate with people that are similar to them. This is basic group dynamics. We gravitate toward people with whom we have common interests.
1047001
Why  do  the white people think their are better then others,we are all the same humans,just a different color,their is bad people and good people in all races,but when it comes to being racist I see it more in white people.what's up with that?
24271
because they're afraid of judgement.  they judge others because they feel judged themselves.  i hate people that don't like me, but i don't try to, it just occurs that way.  we can supress or express our hate, but it's still there.  people hate as often as they love.  the end... i suppose.
248046
because your viewpoints oppose theirs.\n\nand by voicing it out, they might be afraid that you can influence others into having the same mindset as you.\n\nAlso, there's definitely racism and elitism in every social level. so when you are supporting someone or something that this social level looks down on, they of course, feel that they have a right to be rude!
377670
American society is very much a "black & white" society, very consumerist society.  People, as a rule, are discriminatory (not the same as prejudiced), they have a definite us vs. them streak.  There are myriad of institutions that reinforce this view, religion and patritotism, to name two.  In the us vs. them view, regardless of fact or opinion I am right and you are wrong.  The educational system in the United States further reinforces this by not making people think, just memorize.  I could go on and on, but I feel that I would end up ranting.  I hope this helps you.
189538
Those are two different questions.\n\nDiscrimination comes usually because someone makes a judgment based on a characteristic that a person has no control over like skin color or nationality.  Usually, the discriminator has had previous dealings with a member of that group and so applies his or her experience from those previous dealings onto this new person.  \n\nBullying has some different reasons.  Some people (girls) bully in order to be popular around other people.  Other people might bully because they want to be perceived as tough, or maybe they genuinely want something (your lunch, your money, your bike).  Usually people bully because they can - if that ability was taken away then they'd stop.  Oftentimes, as a result, they look for targets they perceive as weak so that they aren't challenged; or if they are challenged, they are likely to be victorious.
623036
in order to satisfy one' ego one feels that he is superior to others and starts looking others as inferior to him.it will not stop there.another reason is we are conditioned to know that white is superior to black and begin hating the black people and love white skinned people. one more reason is if one group of people  is in possession of wealth, and power, it treats others as inferior to them.
272763
because people have opinions
531038
Sure, prejudice is a survival instinct from when humans roamed the plains. It is also used as a self-definition tool. "Yeah, I hate (insert whomever you hate), they're the cause of my problems!"\n To keep one's mind clear of prejudice, one must be ever vigilant. It's always an easy out to blame your troubles on others.
271537
There are many causes of prejudice. The first cause is realistic group conflict. This of course is prejudice usually based off a form of competition, an example of this, is some Americans arguement for being bigoted against feigners. "They took our jobs!" A case was done that displayed this, it was done in the 1950s by Dr. Sherif, calling it Robber's Cave. \nAnother cause of prejudice is maintaing social identity. This comes from Tajfel and Turners Social Identity Theory. They claimed that our personal identities were based of our social identities and to which group we belong to, and while we are in a comfortable group we dont want that to change. An ideal example of this is a person from a miniority moving into an area of "white breed society". The majority fears change and fights to keep a status quo.\n\n                                                                                            The third is natural tendencies in perceiving people in groups. This is based of a preference for the members of our group and ideas about those outside our own circle. That guys got a bandana on his head, hes a gang member. Some of these evaluations of those outside our group can be extreme to a point of insanity.\n \nAnother reason, and possbily the most common is overgeneralization. If one Mexican-American parks his car on his lawn, all most, or if one Afro-American is seen eatting KFC, they all most like it. It is the law of small numbers, while it is the most common, it is less likely in cities where there is a higher minority percentage.\n\nYet another reason is selective perceptions and memory. This is remembering something that is skewed to rationalize a distrust or biased.\n \nAnother is personal desire for authoritative power. It is quite easy to achieve in your own mind such power if you feel you can keep a people down.\n\nThe last is societal causes and a desire to conform to social norms, this explains the reason why blantant prejudice is more evident in some areas then others.\n\nThis is all factual data right from a college text, if you absolutely desire hard numbers email me and Ill see what I can do.\n\nWell this has been fine, and I know I only answered half the question but its only two points.
678831
Ignorance leads to bigotry.  For example, the belief that Muslims and Christians worship different Gods has caused a lot of trouble.  When you find out that people have similar believes, there is no reason to fight over believes.
426522
Some communities are not threatened by differences that may exist between people.  They realize that their differences are so minute that they have no meaningful impact on the character or competency of the individual or the environment. They are receptive to scientific facts rather than the opinions of those who lack knowledge and live in isolation.  Other communities suffer with such extreme feelings of inferiority that they are fearful of any change.  Therefore they react by creating conflict to prevent changes from taking place. Many times, this fear is fueled by guilt and fear of discovery and/or fear of punishment in retaliation for past human rights violations against the international majority.
798204
Right now, it's jealousy.  Yes, some people do actually hate other people because they differ on opionions.