Those countries have very rigid national identities and they've always had issues accepting the fact that a German, French person or Swede could have foreign born parents and still be called a German, French or Swede. Nationality and ethnicity are strongly tied to those countries. It doesn't matter how well-adjusted you become, those societies won't accept that at large.

That's true and that's starting to change as they receive more and more immigrants.

However countries like the US or Canada, they accept you right away but based on your race you will be forever discriminated even if you've been living there for decades.

I'm not talking about the US. I am talking about Canada. You keep bringing up the US, and I don't see how it is relevant at all. That's another country with another society, another set of rules and another outlook on life.

Canada is almost as racist as the US.