Earlier quoted context omitted.
You're not wrong, the NHTSA should be more proactive on this stuff. But to be fair, drunk drivers kill 28 people a day in this country, or about 10k people per year. 3k people die at signalled intersections every year, or around 8ish per day. While Tesla shouldn't be beta testing their self driving cars on public roads, it's clear that human behavior and existing road design is still vastly worse.
The problem is not drunk drivers but incapacitated drivers, whether due to alcohol, drugs, lack of sleep, distractions (mobile phones), etc. The fix is not arbitrary alcohol blood levels, or extending the "War on Drugs", but with standardized, enforced, in-vehicle continuous testing that ensures that the driver is awake, responsive, and in control of the vehicle. That is something where R&D in AI/ML/software to analy…
AI/ML/software is know for its high false positive rates, so if it was enforced it would lead to many drivers unable to use the car because of a false positive hit. If it was enforced, then the high risk reduction wouldn't occur before the crash and society in general will want to impose laws to fix that. Car crashes effects more than just the driver, and it not reasonable that so many people die from car crashes each year.