Alcohol is legal, yet how many people die each year in alcohol-related traffic accidents?
Aside from drivers, and their presumably willing passengers, not many. 2,758 in 2018 according to the NHTSA. And that's a worst case number where a driver over 0.08% is assumed to be at fault. Strip out the fatalities where something else caused the wreck and that number will be lower.
https://crashstats.nhtsa.dot.gov/Api/Public/ViewPublication/812864
To put that tiny number of fatalities into perspective there were 4,000 total 'rona deaths reported Thursday and Friday of this week. But alcohol has been demonized by the authoritarian state to the point where some people willingly accept draconian bullshit like roadblocks. As things sit right now you're several times more likely to be killed by 'rona this month than you are to be killed by an "alcohol related" driver next year.
2758 deaths per year is much lower than I would have guessed, so I clicked on your link.
This is what I found on your link:
"In 2018 there were 10,511 fatalities in motor vehicle traffic crashes in which at least one driver had a BAC of .08 g/dL or higher. This totaled 29 percent of all traffic fatalities for the year. (Note: It is illegal in every State to drive with a BAC of .08 g/dL or higher.)"
10,511 deaths per year, or about 3 in 10 of all traffic fatalities which is more in line with what I would have guessed. Years ago it was higher. Back in the day when Dick Cheney was getting his DUIs it was no big deal and a lot more people died, due to both more drunks on the road, and cars that were not as safe as today's cars.
There is no excuse for risking other's lives due to alcohol, THC, texting, or operating a vehicle with bad brakes, lights, tires, etc. I think we need to have more of an emphasis on people taking personal responsibility for their actions. Big government can't solve all of our problems.
I agree with you that roadblocks are a violation of our 4th amendment constitutional rights. It's the same issue with guns. Why penalize all gun owners, when the vast majority of gun owners are law abiding upstanding citizens?
Safe travels everyone.