There were people out there in the crowd who had firearms. Likely loaded. And not one of them drew them.
At least cooler head prevailed. Fortunately the crowd saw the McCloskeys as the poseurs who they were. I'm not opposed to anyone having a firearm for self-defense purposes. However, it's an extreme responsibility to wield one (loaded, operable, or not). Mark McCloskey was somewhat careless with his rifle. I originally thought that maybe he might not be held as culpable since he wasn't just randomly pointing his rifle, although there were a few times where he did sweep it towards the crowd. Patricia McCloskey had absolutely no business having a gun in her hand, and her husband even admitted that she knew nothing about how to handle it. There's all the video of people who are imploring them to put the guns down, one saying that there are children in the crowd that she's pointing her gun at, and that the crowd isn't there to protest them.