I'm not surprised by the verdict. Reading the facts of the case it's not difficult to understand the verdict on the serious charges as I understand them and how self defense is interpreted in the US. I can't comprehend the not guilty verdict on "Possession of a Dangerous Weapon by a Person Under 18" as well as the other weapons charges. Apparently an AR-15 isn't a dangerous weapon or Rittenhouse was over 18 (he wasn't).
This is just another classic example of guns exacerbating a volatile situation and doing the opposite of their intended purpose (Rittenhouse himself said he had no interest in shooting anyone and thought carrying the AR-15 was "intimidating" and "looked cool").
Gaige Grosskreutz, an EMT on the scene to provide medical help, is very pro-gun and very pro-Second Amendment (he was quoted as saying when he leaves the house, it's "keys, wallet, gun"). When he arrived on the scene, he was under the impression Rittenhouse was an "active shooter" and drew his weapon. Rittenhouse almost blew his arm off.
American gun culture is a disaster and a global embarrassment. Nothing positive was achieved by guns in Kenosha that night. Just more slaughter for no reason. Nothing more, nothing less.