Re: 1) But parents decide to have children, and they have the responsibility for caring for those "vulnerable people". I'm not saying they don't need more time, but to say they've been put into some untenable situation that must be dealt with by everyone else is absurd. There's never been more access to birth control or knowledge about the reproductive process. There's never been a point in the world where there was less space for another child. Looking from at this from the perspective of what's best for children, having a child is selfish. Adoption doesn't add people to the world and would decrease overall suffering assuming you're a better parent than the foster system.

2) This is recently becoming a national issue, as it well should be. There needs to be a mechanism in place to protect the employees surrounding parental leave if it's going to be enshrined in national law. I don't think you can make the argument that businesses don't have a history of pushing the costs of regulation onto their employees when possible.

3) By that argument bringing up parental leave at all is a completely moot point. We have nearly 438,000 children in the foster system.[0] 45% of all child deaths are from malnutrition.[1] If I made a list of injustices in the world, a parent being unable to spend every waking moment with their child for a couple months isn't even in the first 1,000.

[0]: http://www.childrensrights.org/newsroom/fact-sheets/foster-c... [1]: https://www.worldhunger.org/world-hunger-and-poverty-facts-a...