Asian American/Asian Culture

I hate when people discriminate against Asian and Asian American culture. Especially when it's ones culture one is discriminating. It is like burying ones culture. For example: I already know some people who don't even realize their own culture and beliefs and instead try to be someone else. There are people in my school who don't realize what type of nationality they are let alone speak it. Their native tongue is English rather than Mandarin or Cantonese. Is it really possible that if one lived in America their entire lives they were raised in a culture that is not the same as their parents, is it really possible to have your culture disappear just like that?
My brother born here like me raised in a home where Chinese culture flourishes, does not know how to speak Chinese let alone write it. I would think that Chinese parents would actually encourage Chinese culture in their household but I see some students in my high school who doesn't even care about their culture. They are making fun of the styles, the food, the holidays. It's the same thing with adults. In the past I used to have two Asian American teachers in elementary school. Both of them don't speak chinese and sometimes act more american than chinese. Look at today society Chinese restraunts aren't even chinese restraunts. Their more like americanized chinese restraunts.