Well, in US cities it's possibly for acting like they are cars on the road. Several states grant some right for cyclists to travel in lanes with cars, but in practice that's absurd. It slows down traffic (to which they defend by saying there is no minimum speed limit), and causes other problems. When you have a frail bicycle riding amongst numerous cars trying to keep up, or inciting rage and causing problems by not being able to, of course there will be accidents.
Things won't get better until cities invest in infrastructure like EU cities have, firm bike lanes and bike infrastructure that is not shared with cars.
Things won't get better until cities invest in infrastructure like EU cities have, firm bike lanes and bike infrastructure that is not shared with cars.