Quote Originally Posted by King Malcolm
I believe, that while keeping some of their own culture, immigrants should generally integrate with the nation that they are moving to, and that the nation should not adapt itself too much for the immigrants.
That's more or less what multiculturalism is. There's nothing saying that the incumbent culture should have to adapt itself to the new culture; that's just the way the intolerant try to portray multiculturalism to try to turn people against it.

Multiculturalism should be many cultures existing peacefully together and being able to experience the better points of each other's customs, foods, celebrations, philosophies, etc, without necessarily blending together.

But I agree with you to the extent that where aspects of the immigrant culture are unacceptable to the incumbent culture (i.e. Islamic extremists beating their wives or Sikhs carrying bloody great swords around in public), those aspects of the immigrant culture must be left behind.