What fallacies are "Transvestigators" operating under

I am talking about the people described here: https://m.youtube.com/results?sp=mAEA&search_query=transvestigators

 

Basically they overfocus on phenotypic traits they expect to find in a sex at a certain level as well, as well as determine genotype despite intersex conditions exiting: https://medlineplus.gov/genetics/condition/swyer-syndrome/

"Transvestigators," as described in the context of your query, seem to operate under several logical fallacies, cognitive biases, and poor reasoning. Here are some of the most prominent ones:

1. **Confirmation Bias:**
- **Definition:** The tendency to search for, interpret, and remember information that confirms one's preconceptions while ignoring information that contradicts them.
- **Application:** Transvestigators may overfocus on phenotypic traits that support their claims while dismissing evidence to the contrary. They see what they want to see and ignore conflicting data.

2. **Cherry-Picking:**
- **Definition:** Selectively presenting only the evidence that supports one's argument while ignoring a significant portion that contradicts it.
- **Application:** By focusing on specific phenotypic traits and ignoring the wide variability and complexity of human biology (including intersex conditions), they cherry-pick data to reinforce their narrative.

3. **Essentializing:**
- **Definition:** The reduction of complex individuals and groups to a supposed 'essence,' usually with the implication that this essence can be universally and simply defined.
- **Application:** Transvestigators essentialize gender and phenotypic traits, suggesting that complex human attributes can be boiled down to a simple, clear-cut dichotomy, ignoring the spectra that actually exist in real human biology.

4. **False Dichotomy (False Dilemma):**
- **Definition:** Presenting two opposing options as the only possibilities when in reality, more options exist.
- **Application:** They often frame their investigations in terms of a strict male/female dichotomy, ignoring intersex and gender non-conforming individuals.

5. **Genetic Fallacy:**
- **Definition:** Judging something as either good or bad on the basis of where it comes from, or from whom it originates.
- **Application:** By assuming that their conclusions about gender or sex are valid based on the origin of their data (which may be biologically inaccurate or misleading), they commit this fallacy.

6. **Misunderstanding of Medical Concepts:**
- **Example:** Ignoring medical conditions like Swyer Syndrome that demonstrate how genotype and phenotype can diverge.
- **Application:** Their inability or unwillingness to acknowledge the existence of intersex conditions and other medical complexities reflects a misunderstanding of genetics and biology.

7. **Overgeneralization:**
- **Definition:** Making a broad generalization based on limited evidence.
- **Application:** By assuming that specific physical traits definitively indicate a person's sex or gender, they overgeneralize from incomplete data.

8. **Ad Hominem (if applicable):**
- **Definition:** Attacking the character of individuals instead of engaging with their arguments or evidence.
- **Application:** If transvestigators disparage or dismiss people based on their gender presentation rather than actual biological or medical evidence, they are committing an ad hominem fallacy.

By relying on these fallacies and biases, Transvestigators fail to provide a scientifically rigorous or logically sound analysis of gender and sex. Their approach overlooks the complex and nuanced nature of human biology, leading to fundamentally flawed conclusions.