To give the parent to your comment some benefit of the doubt, some vehicles do have mandatory breathalysers fitted, but as far as I'm aware it's only commercial vehicles in certain sectors of the market (some buses and coaches, I know of, it's possible they're required somewhere in goods transport vehicles)
Some countries already allow convicted DUI to keep driving with aftermarket breathalyzers. IMO in some cases it's good as an optional replacement for the license suspension. If someone depends on their license that may be a good compromise to both not ruin someone's life and ensure public safety.
You are unhappy with the new law. I'm asking if you would find a targeted law more reasonable.