My mother tried to make my brother abuse me and I just can't get over it

now for backgroung I'm from a culturally conservative country but my mom spent her teenage years and early twenties in Germany and there she enjoyed full freedom of wearing whatever she wanted and dating etc. Me and my older brother were always very close and he always was the most kind and caring boy ever , my mom has always favored him over me but I always said it's because he's her first child and only boy , anyways when I turned 11 she started trying to make him control me I remember one day I was watching a music video that had a woman Dancing and singing in shorts and when she saw it she told me "your brother should slap you for watching this" I was so confused by this but I just ignored it. and I also remember the time I joined volleyball training and basically they gave us leggings and shirts for our team and when I wore them to go train my mom saw them and she screamed at me and took my clothes to my brother telling him that he's not a man for allowing me to wear this, my brother didn't react and was confused. Now my brother never tried controlling me or whatever and he even told me that it confuses him that some physically strong men would hit people who are obviously far weaker than them. but I always think why did my mother try to make him physically abusive, controlling and ruin our bond ? Keep in mind he's literally 6'4 and was around 18-19 at the time and I was 11-12. Why would a mother try to make a strong tall guy hit her own daughter? Both of my parents used to hit me a lot , was that not enough for her that she tried to make my brother abusive as well ? Again my brother never harmed me or anything but the thought of it is scary and it hurts that my own mom had no problem of me being hit for stupid reasons such as watching a music video? I tried to make lots of excuses for her but there's none she grew up in an open minded country and enjoyed her youth and had freedom of clothing and dated , my father never hit her and in fact one day when he threatened that he would hit her she slapped tf out of him , she drew boundaries for herself and protected herself but me ? I didn't matter Aren't mother's supposed to protect their children... ? I really just feel nothing for her but hate and anger and it's consuming me. Does anyone have similar experiences?