I missed the part where he said purpose was trying to cause fear. And what is normal open carry? Also at one time it was abnormal to carry a concealed pistol.No, what he is doing goes beyond standards of public decency and normal "open carry". He was engaging in abnormal behavior for the specific and openly stated purpose of causing fear and eliciting a response. That is irresponsible, even if it's not illegal.
Open carry is becoming more acceptable and normal, in most situations and circumstances. This guy wasn't just enjoying a leisurely day at the park while he happened to be open carrying a pistol for personal protection. He was engaging in immature, self-aggrandizing, theater so he could go home and count his youtube likes and comments.
If you walk around with your pants hanging off your a## and your underwear showing, it's legal but it's still stupid and I will deride you for it while still recognizing your right to do it. If you walk around blowing massive clouds of vape smoke into crowds of bystanders, it's probably legal but you are an idiot. If you want to wear a man-kini at the public pool, it might be legal but nobody wants to see your nut hair. If you want to strap on three guns, including a long gun (or something easily mistaken for a long gun) and take a walk in a public park just to get a rise out of moms pushing their kids in strollers and "educate the cops" then, again, you are an idiot and I have no use for you. I will point you out to my children and call you names....while still agreeing you have a right to do it.
His behavior is a classic example of critical decisions being made where rights and responsibilities intersect.