While the intelligence of the dude with the skate board was obviously questionable, hitting people over the head in that manner is deadly force, just not as effectively or immediately deadly as a bullet from a fire arm can be. IOW, Rittenhouse used deadly force to defend himself against deadly force.
BTW, as best I know, neither "body armor" nor a helmet are protective against an AR-15-type rifle firing .223 or 5.56.
@PeteS in CANo,but they are better than nothing,and might be effective against tear gas rounds,bricks,etc,etc,etc.
They are definitely effective against fists or feet,and that is all most of the citizens they would be going up against were armed with.
And let's face it,how lucid CAN these freaks be to be ANTIFA members? Most are in their 20's and 30's,don't have/have NEVER had jobs or careers,no college degrees,no trade school degrees,and no future at all because they are too lazy to work. Nothing but slackers looking to blame their failures on everyone but themselves.