archery hunters are backed with guys carrying 375s...
Yes they are, but the ones I'm familiar with, and probably many or most of the ones I'm not, want to do more than simply arrow the bear and have the job finished with a rifle. Things have to be right- and close- to kill a bear with an arrow. A smaller rifle, like a bow, is simply going to limit one's opportunities, but also require a person to hunt (stalk) better and closer.