As a cyclist, while in a bike lane, I find that I am more predictable by having a space, well defined, that I can comfortably use. When not in a BL, I find I sometimes have to negotiate with drivers... sometimes indicating to them to go around, or take the other lane, I find this tedious and somewhat nerve racking. I also find that many drivers tend to come up, slow down, hesitate and then move on, some in an agressive manner, as if to demonstrate how close and fast they can handle their vehicles.

As far as tracking, I tend to track very well thank you, and use both the curb and the line to help center me in the lane. I find that this "centering action" tends to provide plenty of safety margin. I also wisely chose to swerve to the outside when encountering obstacles, or I signal to leave the lane when sometimes necessary. This is easily done on my commuter bike with wide tires and a mirror. With my road bike I do not move about as much as I do not have a mirror... but then I also tend to avoid heavily trafficed areas while using that bike... thus I find I can hear approaching traffic more easily.

As a motorist, I notice that other drivers also center in defined lanes, this leaves plenty of room between any auto and any BL. I also notice that as other motorists encounter cyclists NOT in bike lanes, they tend to brake and hesitate. But then I do actually observe both the actions of other motorists and cyclists... especially as my wife very much enjoys driving, and I therefore get to ride in the passenger seat and watch the craziness that seems to go unnoticed by some.

BTW as far as responding to your questions... since you have failed to address the issue of BL having utility in some circumstances, I find it less than sincere of you to continue with your dismissal of all bike lanes past, present, and future.