I have heard transactivists say that the difference is that young kids don't stick to their insistence that they are a cat, dinosaur, etc. My reply is - you really don't know much about young kids
My child has been presenting as a member of the opposite sex for years. Coming up for 7 years to be precise.
My child was offered puberty blockers and there isn't a doubt in my mind that, had we accepted, my child would go in to fully transition.
As it stands we got a limited amount of help from the NHS (that stopped when the blockers were refused) and I have been paying for a private therapist for my child.
My child no longer wants to transition, as it turns out it was body dysmorphia and also a lot of feelings that my child had about being gay and the fact there is a lot of homophobia in my family (none of which we speak to anymore).
My child identifies as transgender long before the TRAs got involved and I've lived through the struggles before and after they did start their self identification campaign.
Before, things were hard as the help for my childs feelings was difficult to find. But we got there and were doing ok.
After they got involved the schools support turned from actual mental health help into a box ticking exercise to prove how inclusive they are. My child was refused therapy as it's not considered a mental health issue. A 'support' site for parents called me abusive for refusing blockers.
Back when we started this it took years and multiple doctors and appointments to make the difficult decisions with regard to moving forward in the process of transitioning. Now it's not that difficult at all.
We are able to effectively sterilize our kids with little thought for the future but are refused meaningful mental health help now.
The TRAs are not helping people struggling with this, they have done nothing for my family and lots of families like mine, they are forcing scared parents into making huge life changing choices for their mentally fragile children because the options are pretty much all or nothing now.
As for transphobia on this site, all I have had is support, lots of wonderful feminists sending me links and taking time out to help me, to send messages of support, they used my childs pronoun of choice and were nothing but respectful and helpful and it's very much thanks to them that I have remained so strong and actually found the brilliant counsellor my child now has.
Just because someone doesn't bow down to your every want it doesn't mean they are transphobic. It just means they can see the bigger picture for everyone. There is actually a lot of help and support in here if you choose to take the blinkers off and see that blindly agreeing with everything isn't the only way to help someone.