Earlier quoted context omitted.
I'd challenge this with a thought experiment. Imagine we put a group of toddlers on an island and somehow give them knowledge of language (and enough sustenance to survive), but absolutely 0 external input otherwise. These people, as they grow, would gradually develop their own views, values, and perspectives. Do the exact same thing on another island and you'd get entirely different results! One can see this very th…
Giving a knowledge of a language is a _huge_ external input, intertwined with culture and life experience of the language teacher. And the smaller the external input we give to this group of toddler, the more they will resemble a violent pack of chimps in the end. Unlikely to develop their own values and perspectives.
In any case you also have an ancestor issue. The views, values, and so on that we take for granted simply did not exist at some point. Yet, here we are.