I believe that as self-driving cars become more ubiquitous, these deaths (and other traffic-related deaths) will decrease. I was driving on a 4 lane road at 5 in the morning and all of a sudden my Tesla model 3 slams on its brakes, missing a deer that jumped across the road by ~2 feet. Its path was completely perpendicular to the road and I couldn't see it until a few seconds after my car started braking.

Imagine a future when a much larger proportion of drivers have 360 degree vision with no blind spots, infinitesimally small reaction times and a human failsafe in the driver seat.