Radfeminist

this is the opposite of the case. Trans ideology is rooted in essentialism. The entire concept of transitioning to a woman is based on the idea that there are innate traits associated with being a woman and if a man shows any of these traits, it's because he is actually a woman.

In fact, "queer theory" is the origin of the TRA movement. Queer theory borrows from feminism, but it borrows more from "critical race theory" which is an essentialist theory itself. The reason it feels like the opposite of essentialism is because its postmodern, which means that theorists believe in social deconstruction. They believe that gender is a social construct, and social constructions are meant to be de constructed. This is generally positive, because men and women should be allowed to behave and act however they want. But when you then blur the lines between gender and sex, it morphed into a belief that you have to deconstruct sex itself.

This is obviously a problem because sex is not a social construct. Sex is just your biological function. So how do you deconstruct sex? You have to attribute everything that was written about gender to sex. They basically walked themselves into a circle.