For goodness sake, they are not doing it purely for the sake of harming the person (I don't know how many times I have to say that). That WOULD be 'objectively' wrong, because no culture supports that, and I doubt any culture ever has.
Your 21st century feminism does not give you the right to declare that any of these practices are 'objectively' wrong. Please either stop using that phrase, or define it for me so that I know what you think it means.