Without commenting on your comment...why on earth is that video age-restricted in the US? That's the most chilling thing I've encountered in a long time.
Well i can understand why it's strongly not recommended for kids, as it's full of actual images of torture and other good deeds of american/european colonization and neo-colonial wars.
But that Youtube prevents you from playing age-gated videos while logged out is a true shame. Thanks for the alternative link! We should upload that to Peertube instead :)
Here's an unrestricted version. https://www.youtube.com/watch?v=Vb2z0XwMtH8