except that the "narrative" is backed by video evidence and the testimony of one of the guys that was shot!

According to this: https://www.cbs58.com/news/kyle-rittenhouse-trial-enters-week-2-survivor-testifies, Grosskreutz pointed his pistol directly at Rittenhouse’s head a few feet away before Rittenhouse shot. If someone standing a few feet away points a gun at your head, of course you'll be afraid and worry you're going to get killed. So at that moment, of course it was self-defense - and the testimony of the guy shot backs up Rittenhouse's story!

The video evidence also shows Rittenhouse RUNNING AWAY from people chasing him. They smash his head with a skateboard at one point and attack him. Again, if they had just let him run away from them, no one would have died.

Of course, if Rittenhouse had stayed away from the riot, no one would have died, either. So Rittenhouse is not innocent, but premeditated murder?