You're comparing vastly different immigration systems, Canada takes in highly educated immigrants and your country has always been growing by immigration. Many European countries have their own share of unprivileged ethnic minorities or quite simply defranchised parts of the country where the big arrival of migrants economically threatens their livelihood, that's not racist.

> Whereas in Europe it seems that you are constantly defined by your ancestry, even after multiple generations.

Yeah, too many different languages, too many cultures and ages of history where Europeans ruled over each other precisely because of the ancestry and the power that went along with it. That is highly engraved in collective mind of most European countries.