I feel bad for your child, MCE. That you knowingly have an intoxicated person driving your child every day. She could pull out in front of a dump truck while she's pulling out of daycare, she doesn't need the entire 1.5 to get home to do something stupid.
I'm sure there would be options for your child's benefits, should AW lose her job, and other benefits for both of you as well, should you choose to go that route. But it seems you have made up your mind that the sacrifices are too great. I'm sorry you feel that way.