AngryAttackKittens let's talk about the percentage of trans women who have narcissistic personality disorder, and/or at least one of the other Cluster B disorders. Because it's a lot (last study I saw was at least 50% for NPD plus a grab bag of other Cluster B disorders).
Also note that lying with no shred of guilt is a feature of most Cluster B disorders.
I realise you have said "most", I do hope you're excluding BPD from the last statement.
Please remember psychiatry is a dangerous weapon to start throwing around, unless you support it being used against you, too.
The whole concept of personality disorder is wrong, it includes people obviously suffering from trauma, and "cluster B" groups together these people (with a BPD diagnosis flung at them) with their abusers (NPD).
BPD is often used as the latest version of "hysteria", it's like a caricature rather than a diagnosis (if you self harm the diagnosis is practically guaranteed), there's so much subjective judgement involved. The best summing up of this I've heard is "Good abuse victim = PTSD, bad abuse victim = BPD". I'm sure there must be some really horrible people diagnosed with BPD out there, but all those I've interacted with have been particularly kind, caring, thoughtful people, trying to deal with their issues whilst being scapegoated and mistreated by psychiatry. (NAPALT!)
Essentially, of course loads of trans people would be diagnosed as BPD, because it's so often shorthand for "attention seeking waste of time". We may agree with this. But when traumatised women are also put in the "attention seeking waste of time" box, you start to realise endorsing this method of dismissing and silencing people might not be a great idea.
NPD - entirely different kettle of fish, as mentioned it should not be lumped in with BPD in any categorisation system.
Also, plenty of trans people may genuinely be traumatised, have suffered abuse etc, and there is a connection to their desire to transition. But obviously not a simple "they're all lying attention seekers and narcissists" situation.