GP is talking about parity between maternity and paternity leave. Citing statistics about the existence (or, as is demonstrably more common, non-existence) of maternity leave is pretty orthogonal to that.
Unless you're claiming that the fact that most states don't offer any paid maternity leave (and almost certainly no paid paternity leave, either) counts as the kind of parity the GP was arguing for, I guess.
GP is talking about parity between maternity and paternity leave.
Not when talking about the US, otherwise it wouldn't just be two countries, since many -if not most- countries in the world don't have any paternity leave at all (even in Western Europe - see Switzerland).
