Another popular trend is videos where they ask people on the street easy questions. Things like "can you name any country on the world map?" (https://www.youtube.com/watch?v=kRh1zXFKC_o). The video creators then cherry pick the dumbest responses. The person watching the video on youtube is thinking "damn, I might not know much, but I'm better than these people!" providing that subtle ego boost. Meanwhile in the comments there's a debate raging about how dumb Americans are, and the Americans are talking about the educational system and what not.

No, it was just a cherry-picked video. Don't overthink it.