Well I think your use of the English language is cultural appropriation of the British and you need to write in the language your ancestors would have spoken. Does that sound ridiculous? Well it should, because the idea of cultural appropriation as a negative thing is a ridiculous one. All cultures borrow something from each other. Just because a white person includes a black character in their work, doesn’t mean we’re legalizing slavery. Not everything will go our way in life, and at some point everyone needs to accept it.