"43,000 people were killed last year, the greatest number in 16 years" True, but there were also 250 billion more miles traveled than 16 years ago and a population of roughly 40 million more people. So though the raw number is higher, the traffic fatalities per mile traveled and per capita is actually lower than it was back then.
'Safety' is going to be the thing that kills personal liberty in this country.
Our goal should be to have zero deaths related to common car usage and driving. For example, the backup camera is there to help reduce the number of people backing up over their own kids. This is a good thing.
You can argue that this system may not be the correct implementation to reduce drunk driving. You can argue other things might actually be better. But don’t claim that personal liberty is at stake for people when 43,000 people lost their personal liberty when their lives ended. Why don’t you care about their personal liberty?