You know, I feel like I may have had a change of heart on the DUI thing. Why can't there just be a blanket "Distracted Driving" rule? I mean, we've already agreed that there shouldn't be random checks and that the only way the cops would even know is if you're driving unsafely in the first place, so why can't there just be a law against reckless driving period?
Regarding speeding... I don't know, it depends on the situation. On interstates, I really don't see the point. In the middle of the city... yeah I can see the point, but even still, a safe speed in NYC at 3AM is going to be a lot higher than at 3PM, so I feel like that could still be solved by some kind of law against reckless driving.
Now, traffic lights I agree with you on. Ultimately I support road privatization, but I don't think it makes sense to get rid of traffic lights. Although I don't think someone who completely safely crosses a red light should be ticketed just for giggles.
I'm ready to be convinced that any/all of this is wrong.