Language silos our world view more than tech could. If you read a news article about Greece that isn't in Greek, chances are you are reading a cherry picked one off story that the newspaper thought might be of general interest to English speaking audiences, leaving behind an entire reality that is invisible to your world view, having never uttered Greek to steep yourself in the most thorough relevant information, or even been to Greece to see it all for yourself. The Greece you've constructed in your head doesn't even exist.

The world is already siloed and narrow minded and always was. E.g. OP writes "evil countries like Russia, China, Iran". It's a very narrow view that is very far from truth. It is formed exclusively by western media and nothing else where another evil country - US - tries to defile every other country in order to loot it using direct (invasion) or indirect (sanctions and neo-colonial politics) measures.