A car making a right turn is also going to be a lot more dangerous situation when there are bike lines than if the bicycles are sharing lanes with cars. I was curious about how it's handled in Copenhagen (since that is usually held up as a particularly bike friendly city), but it seems to be an issue there as well, according to this article[1]. What's interesting about this article is that it suggests that a large part of the bike safety efforts are directed at getting cyclists to adopt safe behaviors. It seems like most of the discussion in states is directed at everyone except the cyclists themselves.

[1] http://www.cycling-embassy.dk/2015/10/23/how-to-decrease-rig...