WI != WA. But in any case, no, if he had the legal right to be there and the legal right to carry there, carrying there is not a basis for arguing he accelerated the conflict. Brandishing would be a good basis for that, but brandishing != carrying open or otherwise, and he was not brandishing.

For sure, I agree he shouldn't have been there. That same night there were also less eventful riots in my area too, and did I go to them? No, I stayed to protect my home and my loved ones with my rifle. Luckily there was no need, the stuff that got burned down and the people that got jumped all ended up being in another part of town, but that's their problem I'm not obligated to protect them as shitty as that is, I gotta look out for me and mine.