No one forced her to drink. That was her decision. It was also her decision to get behind the wheel while drunk.
In my youth this could have been I. I was lucky and never did harm. If I had of done harm it would have only been right I faced the full extent of they law.
The only thing in question is how long the jail sentence. Jail should be both punishment and rehabilitation if the ideal.
I myself prefer the concept of short jail sentences that are the hell on earth that might rehabilitate the person of wrong doing. Perhaps they can then be a member of a society. Release them and if they fail a second time, put them in jail forever or execute them.
I am not a criminal and these harsh laws are of no danger to me. Do not ever touch my granddaughter in an vile act. I will kill you if my state does not. I am old and it is well worth the sacrifice but here in Texas I would probably walk free.
Beware old men that love their children and grandchildren. We are very nice people but deadly in the extreme.