I would hate to see mothers 'work'. You think taking care of a baby is a part-time job? Maternity leave is VERY IMPORTANT.
For the loafers: Just add an '-L' to their name so you know they are a loafer and you don't waste any more time on them. Maybe they are crippled or something.
Mom's work IRL without taking two
YEARS off. In some cultures if she's healthy enough she's back to work the very next day. There is zero reason that they can't at least do research while caring for the baby.
At the very least cut the time down, but I still think moms should do more then just walk around carrying a baby.