Should the US expand Maternity leave and introduce paternity leave?

No. Go to work

We have no paternity leave, and no paid maternity leave, for you see, we are nation that values the nuclear family...until it costs money.

Its up I the company as it should be.

My company has both. Don't know the maternity states. But paternity leave is a week paid.

It will never happen in a country where money is God

Yes, but it's unlikely it'll happen in a country where even maternity leave is seen as an enormous imposition. I knew someone from Sweden who said he got 6 weeks off for paternity leave.

Back in the day we women fought for pregnancy to be treated like all other illness. Now we see that wasn't enough for some. What a surprise.

doesn't that begin with kindergarten?

Yes. But time is money.