Ethnocentrism

[Anomalocaris]

Given by whom?  Who do you think is telling you that the reason we should keep going with multiculturalism is for cultural enrichment?  That's just a fun bonus.

Are you concerned with multiculturalism, or nigerians..chiefly?  I can't help you with the second thing.

If it's fun, then how come no one recommends it for non western countries?

because non-western countries, except japan, are not facing demographic death?

and japan, in an blaze of selflessness decided it should act as an warning to other of what happens when a developed society rejects multiculturalism, has put itself on track to losing half of its popukation by the end of this century, and making sure it’s dwindling number of young working age japanese will be supporting three post retirement geezers,  so any vestige of economic vitality japan still has in the year 2100 will drain away as the few young productive worker it has left decided cultural contribution not withstanding, china and india offer more economic opportunities with less overhead?

seriously, all major western countries are facing demographic death, except france, thanks to immigration from north africa, and the US, thanks to immigration from the rest of the world, but primarily latin america.

rather than “cultural contribution”, nativists of your ilk is really accelerating the progress of the western world towards irrelevancy through demographic death, and the progress of western culture towards the status of an interesting, maybe even lemented, historic curiosity.