daggers-drawn:

Gender, as it stands, is an oppressive social tool that reinforces hierarchy by sorting children into gendered social classes with corresponding reproductive and social roles.

The logic of the system is that people are tools and should be sorted according to their usefulness into categories that (a) maintain order and (b) produce surplus (under capitalism, this is realized as “profit”).

It’s true that gender is based on biology, but it is wrong that this is innate. Gender implies social roles that have nothing to do with reproduction and children are often even surgically altered to fit their assigned reproductive roles better.

Also, reproduction is not the purpose of human beings. There is no purpose. Tools have purpose, humans just are. We just exist. 

Thus reproduction is also an assigned role, which is why so many people with uteri have trouble getting contraceptive surgery or other permanent medical contraception and why a large part of the conservative moral thrust is invested in the anti-abortion movement.

So then gender is not necessary. But that’s not to say binary trans people are “reinforcing gender” or some other horseshit. Quite the opposite, they are taking power from a system that attempts to make them its subjects and asserting their power of self-definition. This undermines a system that exists solely on its ability to assign gender to subjected people.