"We just want assimilation" is the palatable marketing term for "We would be fine arresting people at their immigration hearings if they are brown enough." Just look at the U.S.
What you said is the same. One is according to what your relative said another is according to what my friend said.
I don't think it's crazy to expect assimilation. We are fascinated with different countries and cultures and we generally consider it's a good idea they exist and are different. Diversity is strength. But they can only be different if they have their own culture and traditions. Would everyone be so fascinated with Japan or Korea if it was not for their culture? Would they be the same without high trust society that is made possible by it?
What's that mean to you? In my city, immigrants work, run businesses, pay taxes, have kids and send them to local schools, ride the bus, complain about the weather, practice their religion. I guess the only thing they don't do is complain as loudly about the government as (many of) the rest of us. What more could they be doing to assimilate?