But why should they be treated the same as people who haven't taken 9-12 months out and have actively been developing their career?
Because it's not even about taking extended maternity leave.
Women HAVE to take some time off, as it is the woman who has to be pregnant, and give birth, and then probably breastfeed, and recover from the birth (which could be some months, was for me).
So women will always be disadvantaged in the workplace because they have to take that time. If the couple want more DC, the woman has to do it again.
A man can have as many DC as he wants and it never has to impact on his job at all. Whereas it always does for a woman.
Having children is something that nearly everyone, male and female, wants to do at some point in their lives. Yet it's women who have to suffer the consequences of that choice, because of biology, whereas men can have both.
And anyway, plenty of men with 9-12 months LESS experience get promoted ahead of the woman with 9-12 months more experience. Because men are judged on their potential more than women (because of bias).
So apparently experience isn't that important... When it has a penis. Make of that what you will.