or could she be saying it's time for the immigrants to stop expecting them to "cater" to their ways?
Cap,
Multiculturism doesn't mean you have to 'cater to their' ways, it just means you have to be accepting of their differences. There is nothing forcing you or any other individual to behave like them. I don't believe the 'Turkish' immigrants expect the other Germans to start speaking Turkish, I believe its more that the the other Germans are frustrated because the Turkish people haven't shedded their own customs.
Having been to many other countries, I can tell you that people will treat you differently if you have an accent, etc.. This among other things, encourages immigrants to band together, and slows the 'integration' process. To have a multicultural society, the host society has to be open to change was well as the guest society, its not a one-way street. I don't sense that Europe is interested in adapting. When one side is uninterested in adapting, the other side follows suit, and you have two cultures failing to assimilate into one.
To see this, you can look at our own history, for example, New York used to have large neighborhoods that were predominantly of one ethnic group such as Irish or Italian. At that point in time, I'm sure some felt that they would never integrate, but sure enough, over time and several generations, integration has occurred. Go back to the 1860s, and ask someone in the US what pasta is out side of a ethnic neighborhood, and I bet they wouldn't know.