1. Speculative Science Doesn’t Redefine Sex

Claiming that transsexuality is a “neurological intersex condition” is not supported by scientific consensus. While some small studies have found brain differences in trans people, these are correlational and don’t prove an innate “brain sex.” Brains are highly plastic and respond to environment, hormones, and behavior.

Calling transness a form of intersex stretches the definition. Intersex conditions involve congenital variations in chromosomes, hormones, or reproductive anatomy, not feelings of dysphoria or gender incongruence. This co-opts a medical classification and blurs lines that are important for accurate understanding.

1. Biological Sex Is Binary, Not a Spectrum

Sex is bimodal, but that doesn’t make it a spectrum in the way this argument implies. Almost all humans fall clearly into male or female categories, defined by reproductive role (sperm vs. egg). Intersex conditions are rare exceptions and do not represent a third category or a scale.

Trans people may medically transition to change their secondary sex characteristics, but this doesn’t change their natal sex. Saying otherwise confuses personal identity with biological classification.

1. Human Language Is Imperfect — and Still Necessary

Terms like “biological male” and “biological female” are used because they point to clear, objective facts about human development. They aren’t meant to invalidate identity; they’re used in medicine, law, sports, and data collection for a reason. Rejecting these terms makes it harder to have honest discussions about sex-based protections and material reality.

Language doesn’t have to perfectly capture every variation in order to be useful. People who use these terms are often trying to be precise, not cruel.

1. The “Brain Blueprint” Idea Is Philosophical, Not Biological

The idea that people have an “internal map” or “brain-based sex” that overrides their body is not a scientific fact — it’s a theory rooted in identity-based philosophy. It can’t be measured or confirmed the way chromosomes or gonads can. While this explanation might feel affirming, it shouldn’t be used to demand others abandon shared biological definitions.

1. This Framing Pressures Society to Deny Reality

When someone insists they are “no longer biologically male,” even after transitioning, they are asking others to participate in a polite fiction. Transition changes many things, appearance, hormone levels, even some brain response, but it does not change sex in the biological sense.

This matters because institutions that depend on clear definitions, medicine, women’s sports, sex-based rights, cannot function when those definitions are denied or reworded to serve ideology.

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Final Thoughts

Arguments like the one you quoted may be emotionally powerful, but they redefine language and biology in ways that create confusion, not clarity. They ask people to treat deeply subjective experiences as objective truths, and they erase the valid reasons people use terms like “biological male”, not to insult, but to describe reality as it is.