You seem to be assuming that my friends were the ones who were doing the drunk driving, not the ones in the other lane of traffic when the drunk driver swerved.
In truth, they were both. I've known people who drove drunk and hurt others and I've known people who drove drunk and have been hurt and I know people who didn't drive drunk and were hurt by a drunk driver.
It's a systemic problem and requires a systemic solution. Personal responsibility is the can we kick when we're unwilling to face the need to change incentives and structures.