There are many systems in this world that we can be simultaneously critical of while also being subject to and contribute towards. There's nothing groundbreaking about that. We can be critical of the strict policing of gender roles and gender expression in society while still choosing to express our own gender in a traditionally conformist way (or by blending them).
We are talking about how people act, think and define themselves. Sociologists, anthropologists and psychologists are probably better equipped to speak on the topic. If you think you're going to find a your answers from people who are experts in how a cell functions, good luck with that.
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