Simply put places that require orange still have hunters being shot each year. Wearing orange does nothing to protect you other than make your clothing clash. Some provinces have higher numbers of hunters being shot over the years despite wearing orange. If orange was capable of preventing people from being shot than places like Saskatchewan, and New Brunswick (to pick on a couple) would not have anyone being shot due to their requirements of wearing orange. Unfortunately this is not the case!
It's the so called hunters, not the clothing in my opinion that are the problem.
You wanna wear orange have at 'er. But my choice to not wear orange does not make me any less responsible than the guy who does.