Left turn, right turn

As traffic engineers have tried to eliminate all driver 'decisions' at intersections, 'right turn on red' has become the curious exception. Try to actually remain stopped in the right lane at a red light, and you are likely to hear honks and screams. It is also not uncommon to see cars make the "right on red" and cross over multiple lanes of traffic to get in to a far left turn lane. On the other hand, "left turn on green" is all put eliminated on most intersections (replaced with a "left turn on green arrow only.") Both movements involve crossing a similar number of traffic lanes in a very similar decision.
The irony is that engineers expect drivers to violate a signal by turning against a red light. (Many intersections would become incredibly backed up if all drivers waited for the green light to turn right.) On the other hand, engineers cannot trust drivers to yield properly to other traffic when they do have a green light. I guess the logical solution would be to make all lights permanently red