I have strong feelings on this.
1) I don't believe any of these #s. They are artificially low or taken from the most rural location in every state.
2) Any metro or suburban area childcare costs are much, much higher. I have working friends all over the country and we pay from $18,000/year (for unlicensed home daycare to live-in Au Pair) to $60,000/year (for full-time nanny for 2+ kids)
3) Gov't subsidies are a joke. $5000 tax deduction or credit is the max. It amounts to double taxation by the gov't when I pay my nanny's taxes and then my own taxes.
4) Every other 1st world industrialized country has high quality, government subsidized childcare.
and finally, is it better for 1 parent (usually mom) to stay at home? Studies say no.
https://money.cnn.com/2015/06/15/news/economy/working-moms-kids-better-off-harvard-study/
http://time.com/money/5272659/working-moms-better-kids/
Sorry, but it's a long held myth that a Stay at home parent is always best for the family.
Each family has to determine what works best for them and their situation.