You are describing assimilation, not integration, also disproven by the fact that the name alone is the only differentiator in this example. Plenty of justifications will be found ex-facto in any case, all are excuses.
I'm not claiming any nation to be above racism, in fact globally most are worse, but this one is really high on its own supply.
They are not excuses. If you move to a foreign country but 100% keep your own culture without taking up the culture of the host country then you have not integrated and the locals are right to not want you there.
The willful ignorance is also exceptional, I daresay, second only to the average US citizen.
So much for Günter Wallraffs legacy