I think in this case the awful phrase "assigned female at birth" might actually make sense. Because in the absence of a penis, and without further testing available, nurses/midwives/doctors made their best guess at assessing the sex of the baby in front of them. And got it wrong.
Now, I think we cal ALL sympathise with families who have a child who has a DSD and are told they have to go through further testing to find out whether they are male or female and navigate the whole minefield of bringing them up. It must be very difficult. Especially in societies where attitudes are not as enlightened as they are in much of Western Europe.
But a line is most definitely crossed when people with DSDs are exploiting their male bodies to compete against women. All because a midwife put a cross in the wrong box on the birth certificate as she didn;t know whether she was dealing with a male or female baby. It is cheating, just like Lance Armstrong cheated. And it's a total disgrace that the IOC are OK with it. There is another case being widely reported in the Australian press about a player on the Zambia women's football team.