As has been said by PPs, it is the trans activists who deploy people with differences of sex development as useful flags to wave.
If you've been following discussions on this board, you'll know that the only reason we refer to people with DSDs at all is if the subject has been forced on us, e.g. when TRAs cynically use the inaccurate term 'Intersex' as some kind of faux justification for transgenderism, or to point out the fact that DSDs are either differences of development of male sex, or female sex, so either male DSDs or female DSDs.
The presence of people with male DSDs in female sports is an obvious injustice, which has attracted widespread publicity, and is difficult for anybody to ignore.
It would be more accurate to criticise the inclusion of the letter 'I' for Intersex in the LGBTQIA++ acronym, than those of us who object to it.
It's not possible to just ignore the mis-use of people with differences of sex development by trans activists - people with DSDs have asked them to stop using them, it would be great if they respected that, and then we didn't have to respond.