> Who cares about tone? Why be sensitive in this context? It's a language. Why would anyone get offended when someone says "Your language sucks"? It's not like they're saying your hair sucks or your tongue is incapable of tasting sweets or your ear is shaped like a tulip.
Yet article 1 of the United Nations Charter states that one of the four purposed of the UN is "To achieve international co-operation in solving international problems of an economic, social, cultural, or humanitarian character, and in promoting and encouraging respect for human rights and for fundamental freedoms for all without distinction as to race, sex, language, or religion".
Language politics are in fact really complicated. I myself am from a country that less than a decade ago went without a federal government for 20 months because the different language groups couldn't get along.
> It's a language. No one can help what language they learned when they were a child.
And while we're at it, why would anyone be sensitive about skin color or nationality?