I might point out that right hook collisions aren't limited to car vs. bike. Passing before turning is a major cause of car vs. car collisions, especially in urban areas. The speed tends to be low enough that injuries are minor, but that doesn't mean they don't happen. Look around and note all the cars with right rear or left front damage, and there's a decent chance that right hooks were involved.

They also aren't limited, and last minute passing before trying to shoot off an exit is a significant cause of expressway collisions. So, IMO we're not looking at anything bike specific, but more about driver impatience and arrogance.

FWIW - I've written to my state representatives for an amendment to the sections of the vehicle code related to passing, to make it illegal to pass in anticipation of a turn in the direction of the passed vehicle. (The current laws don't address passing on multiple lane roads, and are only address passing only on the left side of the roadway).