The Māori monarchy dates back to the 19th Century, when different Māori tribes decided to create a unifying figure similar to that of a European monarch in order to try to prevent the widespread loss of land to New Zealand’s British colonisers and to preserve Māori culture. The role is largely ceremonial.
If you deny women access to abortion related healthcare, they die. Abortion bans ruin lives, and if you really have to protest abortions (which you shouldn’t), direct your attention towards politicians, instead of harassing women who need healthcare and are already having a horrible time.