I would say people who transition and then detransition have suffered a great deal of emotional turmoil. If they suffer abuse and bigotry it is from those who do not wish their stories to be told. Their stories are part of the trans experience at a population level, just as abortion regret is part of the abortion experience at a population level.
The point about detransition being part of the experience is that we do not yet know it’s prevalence and how representative it is. Yet young people are making irreversible decisions by taking hormones, which will render them sterile. We need to know for medical reasons how common detransitioning is and why people do it. That is in the interests of all young people. It is in the interests of trans people because talking about detransitioning does NOT invalidate their experience when they want to transition, it helps understand why transitioning alleviates distress for some people and not for others. I could hazard a guess about this, but it would be my opinion, whereas research based on statistics, qualitative testimony and medical experiences would help.
Seeing as you want to talk about abortion regret feminist4, there have been nearly 50 attempts to change the Abortion Act 1967. At each point, the Abortion Act has been publically debated, either in Parliament or in the press. Concerns about abortion regret are addressed both in pre-abortion counselling and in post- abortion recovery (google ARCH trust) and counselling which recognises it is not an insignificant procedure for women involved. One does not have to go further than these boards to hear testimony from women about how they have felt afterwards.
Abortion and abortion regret are very well discussed in the media. I suspect I know more about it than you feminist4 from my line of work. I would like to discuss them further but this thread is about de-transitioning. To understand the implications of a phenomena, one has to understand all angles. The parallel with abortion regret is false because there are fifty one years of evidence and discussion following the passing of the Abortion Act. Campaigning for safe abortion had gone on for at least three decades previously. The desire for abortion law reform came from the medical profession as well as women seeking safe termination. This is all well documented.
Whereas gender dysphoria has massively increased in scale in a short period of time, particularly in young women, and does not necessarily bear the same hallmarks as what medical professionals have long understood by clinical levels of gender dysphoria. Young people are offered life changing hormonal treatments without knowing the long term impacts or whether the dysphoria might itself resolve. Programmes to address this lack of knowledge and offer alternatives are being and have been shut down. Debate around abortion has not been and was not shut down, it has gone on in Parliament, among doctors, among women and their loved ones, among the Churches, in the media - FOR decades. The suffering of those who regret abortion should not be ignored - BUT it has not been and is not (see above) - you are drawing a false equivalence.
Researching and talking about both transitioning and de-transitioning matters because by understanding that, doctors, teachers, parents, and young people themselves would be better placed to respond to and understand their own experiences. De-transitioning does not invalidate the experiences of those who transition, any more than abortion regret invalidates the experiences of those who feel relief. Neither group in either scenario should be unable to speak or be heard or have their experiences ignored.