If you risked 20 years in prison every time you drink and drive it would happen a lot less. This is pretty much the one instance where I think the fear of punishment should out-prioritize rehabilitation because the act is just so egregious and preventable.

This will not fix anything except the problem of not enough people in prison. Countless studies have shown that after a certain amount of punishment, anymore is functionally useless. In addition you have to factor in the chances of getting caught. If I have a better chance of winning the lottery then getting caught speeding, then the consequences for speeding aren’t going to factor into my decision to speed.

The only thing that will reduce drinking and driving at this point is reducing driving, period.