Idk man it's nice seeing women in these predominantly male roles (joking don't @me)
But I wonder what her husband thought of before he died. It's actually sad knowing that if she continued her act, he probably would have been her willing puppet anyway but she knew he wouldn't leave her even with the neglect, lies and threats so she dropped the act. My hearts breaks realizing what she was doing when she brought their son to see the affair. He was the only thing keeping him sane and she purposefully destroy their relationship! So needlessly cold and cruel! Classic narcissist behavior. You're not allowed any happiness or peace without their consent. Your only value is the elevate them and your misery make them happy. I don't think there's a deeper reason like hating espers and guides at all. She just wants glory and power *shivers while burrowing into my blankets* so cold

My impression changing anout his mom the more the chapters went on
Assumed she hated Espers and guides because her husband, an Esper, cheated on her with his Guide. Even made their son see his affair
Going so far has to do human experiments just to take them over
Then we learn more about her and she's just the devil. When her husband found his guide, she called the guide his personal sex toy. So i assumed she finds the whole dependence on guides disgusting especially since sex is the most effective form of guiding.
Then we find out, this whole time, that the bitch was a guide that could manipulate minds that how she was able to marry her husband. And SHE HAD BEEN BENEFITING FROM HER POWER THE WHOLE TIME.
So i think she just finds guiding disgusting
Also after seeing their entire marriage, i understand why her husband cheated because you'd think they were just roommates that agreed to surrogate a child and with her pride, she'd rather kill them(which she did) than let a divorce dirty her image