I came across the phrase "motherhood is not a mistake of nature" and something about it resonated.
A major issue I've noticed is that most women still secretly believe they are inferior to men (whereas men still secretly believe their worth is based on a woman's opinion of them). I'm not clear on it, but I believe these basic, secret suspicions of men and women explain why gender theory is so popular.
Women see the being of a man, with the ability to be frivolous with his sexual activity, and assume this is the desired measurement of freedom and power. They believe their natural biological machinery of a womb is a handcuff and an in-built, unfair responsibility holding them back from "real" freedom. The natural ability of a man to just walk away after a sexual encounter is a deep frustration for women, especially when they are generally stuck with the baby.
The male's biological and sexual frivolity appears to be the substrate for the conception of freedom in most cultures. Men have the freedom to walk away, and the freedom from responsibility - they embody both positive and negative freedoms. Women look at this and see only their lack, and they hate it.
But I think men and women are drawn to gender theory for different reasons. Women don't really like being women. So, the ability to change that reality and actually embody the male reality is extremely attractive for some women, especially those who struggle to fit in with the common idea of "woman."
For men, the ability to become a woman is equally enticing because men control neither their own worth nor the sex game. Many men think women are decidedly unworthy of having so much sexual control. The chance to become a woman offers a frustrated man the ability to control something that has been controlled forever by - from his perspective - a miserable, needy creature who arbitrarily withholds the only thing his biology tells him to want: her vagina
At the heart of gender theory is also the all-too-human aversion to the act of becoming. The trials and effort a person must go through to become a man or a woman (motherhood is a responsibility, masculinity is an achievement) are too great for some. In modern Western culture, most adults are simply really tall children, occupying a permanent state of "almost." Nearly all the avenues of personal development, such as manual labour, quiet reflection, decision-making, parenting, etc, are removed from us by technology.
That's all great, but the act of becoming a full man or woman in this era is a choice, not a necessity, and many people simply choose not to do this at all. People can last an entire lifetime without growing up. Gender theory gives such people an existential excuse to forever occupy that state of "almost." If it's true what gender theory says - that a person is never, in essence, a particular thing, and can chop and change to whatever they want on a whim - then of what use would striving and personal development be?
The human body, just like every organism, expends the least amount of energy necessary to survive - it will do anything to avoid change. Gender theory offers the poisonous option of stasis, great in the short term, but deadly to the soul. Worse, it makes the person a puppet for any ideology looking to build an army of unthinking and undeveloped uniforms.
Gender theory has its roots in the worst pieces of humanity that Western culture has been striving to escape from for 3000 years.