Yes OP! How very dare you have an involved career expecting long hours!
You should be a stay at home mum, with a part time job and low pay, whose husband gets used to the privilege of having someone to carry the domestic load and starts treating you like a skivvy..
You're not a real person, why on earth have you got a real job. Why are you teaching your kids that women are more than domestic servants and second class citizens ? Why are you teaching them a strong work ethic!? You're just a walking womb and support human.
Know your place woman!
The usual Mumsnet internalised misogyny is on full display today.
On a serious note OP my son often had his breakfast at his private school. We both worked serious hours in serious jobs to give him the best start we could.
He's now an independent, capable and resilient young man and we are very close. He's not damaged at all, he knows how much he is loved and he knows how hard we worked to give him the best we could. Also unlike so many on here, my husband carries half the mental load and doesn't help around the house, he does just as much as me.
Tell your Mum to keep her nose out, women aren't obliged to believe that being chained to the kitchen sink is the best way to live their lives anymore. Day boarding will be a practical solution and will give your kids consistency. They'll meet friends doing the same and they'll be safe and fed. They may well get involved in after school activities and hopefully they'll get all their prep done in good time too!