A key point that I was making (and a point which your rewriting of my comment completely erases) is that parenthood can be planned ahead for (or avoided) to a much greater degree than other situations that require family leave.
I could have made some anodyne choice of words that obscures this fact, but I didn't because I wanted to make the point that if we are giving people support for voluntarily taking on extra family burdens, then it's absolutely inexcusable that we don't extend the same support to people who have had similar burdens thrust upon them involuntarily.