You are not alone. I first heard something about this years ago and my views have remained unchanged. It’s a ridiculous idea and in my opinion even discussing it as an idea sets maternity rights back decades. It makes it sound as if women are off on some jolly rather than recovering physically from pregnancy and birth, whilst looking after (and getting to know) a new baby - never mind the rest!
I say this as a child free/childless by choice person.
I do think there may be room for discussion on making unpaid leave / leaves of absence more available for ALL employees whether male, female, parents or non-parents to persue other goals (study, travel whatever), on a case by case basis and so in reality nothing like maternity leave or this “me-ternity” BS.
Ugh I’ve rambled - short version, I think the idea is ridiculous!