I do not agree on comparing evolution with culture with the way you put it. Scholars after all are human beings too and their conclusions can be as much personal opinion as the rest of us. If I turned your logic around with questioning evolution then I guess it should be fate from a superior power that the whole world should be enthralled with modern civilization such as iphones, jeans, and hollywood movies. Of course if that point was given heed then it would be an obvious bias towards western civilization and possibly racist. I do think for people to take credit for something that their ancestors achieved they should at least carry themselves firmly so as to back up their proud heritage, but only if they so choose. It's the people who try and force things on everyone (such as moving to another country and still addressing locals as "laowai") while not contributing enough back to their adopted countries that I have a problem with.