The claim that karyotype testing is wrong because it's cruel, invasive and undignified is such a load of bullshit.
It's not an invasive test. It's a case of a cheek swab or spitting into a pot.
The results don't need to be made public. It is not a public humiliation.
If anybody who wants to participate in women's sports was required to be initially tested, DSD male athletes would never even be in the public eye in the first place.
It's no more intrusive or cruel than weight testing. Weight testing can be sensitive for many people, especially women, yet it's obviously necessary to ensure a fair fight in combat sports. Yet no one is claiming that weight is irrelevant and that talent is more important, that it's harmful for theoretical competitors with eating disorders, and that skinny people should just fight harder.
They completely ignore the cruelty and humiliation of female athletes who have their careers shattered, or nipped in the bud before they even start, because they can never, ever win.
It's not exclusionary. There is a lot of talk about "balancing fairness with inclusivity" so that "anyone who wants to participate in sports can do so". Firstly, very few people are talented and committed enough to compete in elite sports; the idea that "everyone" (i.e., men) is entitled to do so is beyond ridiculous. More importantly, there is absolutely nothing preventing these men with malformed penises from competing with other men, except their own lack of talent. It's not that they want the right to compete, it's that these mediocre males want the right to win.
I have zero sympathy for these cheating, career-stealing woman-beating bastards. I don't even care about their precious internal identities any more (and I suspect they don't, either).
That sounds fascinating!