I'm a SAHM, but I'd support it.
I sympathse with how you're feeling, but its not a competition, even if it feels like it sometimes. Its really not. Helping one group is not an insult to another. It just is what is: recognising the reality that some working mums have to use nannies due to odd hours, difficulty getting to daycare, whatever. If it makes things easier and gives familes more choice then great.