How many of these 'cultures' being appropriated were the same culture or inheritors that the British 'appropriated' from? How many of these cultures respected these items on a cultural level? How many just happened to be living in the same physical location where these items are from but had no cultural connection (Rosetta stone)? It's a pretty one sided conversation you all are having, and one that can't be expanded without breaking the guidelines, hence the guidelines. But it's ok because you are directing this at an 'out' group.