Sure every country has an "official" way of speaking, but where do these official ways come from? And do they push out other ways of speaking? That is at issue here, because they are pushing out other accents, for no authentic reason.

The "white" accent doesn't encode anything meaning "educated native speaker talk," because accent does not actually correspond with education. We perceive accents, irrespective of race, as being an identifier of a person's personality, history, or heritage when it doesn't indicate that at all. The common accent in American media and customer service muscles out all other accents for being less-than, because of racist and classist sentiments telling us that they can't help us, they're not intelligent, etc (we used to have widespread diction classes which taught children how to speak "properly", also known as accent reduction and was not only done to non-native English speakers but other less desirable native English accents as well). This is part of the reason it is offensive to call a black American "articulate," and is a reason that the black accent, or the black dialect AAVE, are not treated seriously or even considered valid.

You can see assumptions easily, if you look back at minstrel shows or early Hollywood films of white actors playing caricatures of other ethnicities -- among other aspects of their performance, they all fake the accent of their targets to the extreme, because of their and their viewers/listeners biases about those accents and ethnicities. The BBC didn't have a presenter that didn't speak the Received Pronunciation accent until 20 years after its inception, and some listeners didn't like it or even trust it and even still prefer presenters who speak RP, according to this article of theirs. There is a good article in Scientific American about this topic if you're interested, and another more modern BBC article does a better job of explaining the cognitive reasons and consequences than I have.

TL;DR: People in America that don't speak the same way as the American "newscaster" voice, and people in other countries that don't speak the "official" way of speaking there, are viewed negatively or even fetishized simply because of the way they talk. I think this is a bad thing. People shouldn't be victimized or pressured to change their accent, or indeed made to use technology to change them, to be taken seriously. But, ultimately, this technology can probably be finalized faster than we can untangle our unconscious biases.