I don't think I was very clear. Yes, you can preach the merits of personal responsibility, people being shitty/stupid/below average, and long-standing but clear problems with our society. At the end of the day, modern societies have been trying to fix each of those things for literal thousands of years. This has been done through culture, through laws, education, and -- wait for it -- engineering. The amazing thing about engineering is that it allows us to solve so many problems, including those which have huge obstacles like passing laws to require actual driving education and the enforcement of laws that aren't just money makers.
Do I want these technologies in my own car, as you accused? No, in fact I'm very indifferent. But at the end of the day, even the shitty or irresponsible drivers need to get to work (and I think we both agree that we want them to as well) which in this country means driving. Why not remove that hazard from YOUR day by making sure those people have these systems, and your only compromise are a pair of amber lights in your mirror and an annoying beeping if you drive shitty (though as you've proclaimed, you're a good driver, so I'm not sure the beeping will ever happen to you). I just don't see how these systems offend you so bad. You are in the minority of opinions on this technology. None of it is mandated by law, and automakers only do something if its what consumers are willing to buy or in meeting regulations. Since there are no regulations, then the majority of people buying cars must want it.
FWIW I mentioned speed in response to that post, and not making my own statement. Of course average speed has increased -- the context was (I assumed) people who speed/exceed the average speed of traffic to actually be dangerous.