This is idiocy of the highest order.. YouTube Guy shouldn't give it a single breath of oxygen, but, y'know, gotta get those clicks.
On a wider scale, this is a pretty good example of why so many people don't understand history these days; because people don't get their history from historians, or even teachers. They get it largely from guys like this, or other YouTubers, podcasters, bloggers, filmmakers, journalists, English or Mass Comm majors, or even comedians. It means people are hearing a lot more storytelling, but not understanding context, examining wider trends, comparing ideologies, or grasping social or political concepts nearly as well.
Such is life in the 21st century, I suppose.