If I change the words to a song slightly, why should anyone care? Music is for enjoyment after all. If I sing "The Rising Of The Moon" as

"At the rising of the moon YEE HA!
At the rising of the moon
For the pikes must be together
At the rising of the moon YEE HA!"

it points out another facet of the music.

We are all, every one of us, products of a multi-cultural world. The English language, as well as all of the others, evolved from many sources. The armies that raped and plundered their way across Europe, Asia, Africa left babies in their wake; the Nations that inhabited the Americas interbred and intermarried. Cahokia had a woodhenge -- was it developed independently or were there visitors from Europe in the mid-Mississippi Valley around 1000 CE?

We are all one people, one race. There actually is no such thing as multi-culturalism -- there's only our common humanity.