As Tam has often said, and it bears repeating, there's a difference between carrying a gun and carrying a gun at someone.
It's even worse when you're an obnoxious jerk while carrying a gun at someone. Make the someone you're being an obnoxious jerk to law enforcement officers, and you're really not helping our side. Not. At. All.
The Detroit Free Press: Video: Gun rights advocate, Oakland deputies clash
Take a moment and watch the videos. This guy isn't just going about his business and incidentally open carrying. Instead, he's going places to deliberately provoke confrontations, complete with a hostile attitude to very basic and innocent questions from law enforcement. Not exactly a good ambassador for firearms rights.
Open carriers who support this guy - what exactly is the image you're trying to convey - that 1. Law abiding people can carry firearms without the average bystander really needing to worry that they'll go loco, or 2. That open carriers are obnoxious jerks with anger issues that wander around LEO parking lots and can't even have a civil conversation with a deputy doing their job?
If you're trying to go with 1, and I really hope you are, this guy is going full-bore on option 2 and is not helping you, and he's setting carry rights, including open carry rights backwards rather than forwards.
Do you want Deputies seeing open carriers and thinking "No problem, probably just a normal law abiding citizen exercising his rights" (which the deputy likely supports), or do you want them thinking "Yeesh, another loud-mouthed wacko that could go off any minute, I better investigate the heck outta this guy?".
Do you want law enforcement officers coming forward to the firearms ignorant and media spoon-fed public that private citizens lawfully carrying firearms are not a threat, or do you want them to walk away with a mindset that will cause them to announce that civilian open carriers are whackers that can't be trusted with carrying a firearm and may be a threat to law enforcement and the public?
If you open carry, you have an opportunity to portray yourself as an upright and law-abiding citizen and act as an ambassador for firearms rights.
While you have every right to be an obnoxious jerk on your own time, don't do it while carrying a firearm. It's not only really not helping advance your own rights (and potentially may lead you into legal trouble) but it's threatening every other law abiding person's firearms rights as well.
Choose and act wisely and responsibly.