The person with the loudest voice in the room today might get the most amount of attention, but that doesn't mean that they are right. They're more interested in drowning out dissenting opinions than in really conveying anything of value, so feel free to ignore them. It's a good day to work on your own, because while everyone is getting distracted by the bluster of this attention-grabber, you'll be free to do what you want to do without any interference. This loudmouth is doing you a favor.