Clearly you're going to get remarkable results in any poll of "trans" people.
For starters (nearly) 100% claim to be in some way not the sex they actually are, so initial signs of reliability are poor.
In an attempted survey of benefits from childhood transition (Turban 2020), 73% of respondents said they'd had puberty blockers after the age of 18, so they just chucked those replies out.
Transwomen frequently claim to have period symptoms and to have difficulty opening jars.
They also repeatedly falsely claim that trans people were foundational in the gay rights movement.
And "feeling suicidal" and "suffering transphobia" are part of their group and self justification for getting everything they want, so for an individual to say they didn't would be letting the side down somewhat.
So clearly any self-reporting figures are going to be immensely unreliably.
All you can say is "46% of trans people claim to be disabled", but that no more makes the claim true than "99% of trans people claim to be the opposite sex".
Now, in reality, there certainly is a significant overlap between trans identities and various other conditions. Trans appears to be the current central hub that lots of disparate things latch on to. I can certainly believe the "neurodiverse" thing is higher than population average.
But you'd need proper non-self-reporting data to figure it out properly. It is a population of fantasists.