What some people are so negative?

especially some asian culture who like to make negative comments about the others.
Update: like for example: muslims make fun of people who eat pork (which is fine for about 75% of earth population and there is nothing gross about pork). Or White women who make fun of ugly and fat women. Some women are ugly because they got it from their parents and not their choice. Or some asian culture who sees... show more like for example: muslims make fun of people who eat pork (which is fine for about 75% of earth population and there is nothing gross about pork). Or White women who make fun of ugly and fat women. Some women are ugly because they got it from their parents and not their choice. Or some asian culture who sees people only from their wealth. Crazy rich asian is a good example of asian culture (not only chinese but Korean are like that).
Update 2: Sorry typo the question should be "why are some people so negative?
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