And it's funny you ask about Kimmel, because I actually know the person who did those bits (she was the offscreen voice for the first few years and is actually the interviewer in this video). She said that while it was edited, they didn't have to edit it much, because about 80% of the people really were that dumb.
That doesn't mean the underlying argument they propose can't be defended, just that the videos have no explanatory power whatsoever.
Dropping in just to point out that ignorant, dumb, and uninterested are different concepts.
Those videos are clearly optimized toward the desired impression, but I don't think that they used actors to make their points.
On the other hand you have problems like https://slatestarcodex.com/2014/05/12/weak-men-are-superweap... where you can construct a castle of lies and deception by only speaking selective truths...
To summarize my point: stories are ways to tell one of the many facets of the human experience, when told honestly they can be helpful to our understanding of both the common and the uncommon, when told dishonestly they can warp our perception of reality.
Tell me, when Jimmy Kimmels producers go out on Hollywood Boulevard and find that not even one person can point to a country other than America on map (https://youtu.be/kRh1zXFKC_o) - do you think that’s real too? Or is that selectively edited for laughs?