Anglo-american culture did enough appropriation itself... no reason to feel bad for appropriating its language :P

(Though, tbh, "international high-English" as spoken has a very latin vocabulary, with non-native-English speakers often choosing the latin variant of words instead of the "native UK/US" phrasal verbs and such, eg. "we're accelerating" instead of "we're speeding up" or "we're gaining up speed", "inadequate" instead of "unfit", "superfluous" instead of "useless" etc. Not sure if to love or hate it, mostly loving myself it I think, but it's interesting and sort of contributes to more precise/explicit communication.)