I often come across posts by trans people who combine DSD/intersex issues with trans issues.
I don't really know much about DSDs, and wanted to understand more, particularly with regards to sport.
I found this interview and found it really interesting. Particularly this quote: "Trans activists, on the other hand, argue sex is a social construct, which denies the material reality of women as a sex class and makes talking about the specific inequalities and discrimination they face difficult. If we can’t identify the group, we can’t name the problem and address it."
Here's the interview: womansplaceuk.org/2019/10/21/biological-sex-is-not-a-spectrum-there-are-only-two-sexes-in-humans-with-claire-graham/