My opinon?
They can live as a woman, in terms of how they feel they need to look, act, live etc in order to express their feeling of being more 'woman' than 'man'. I've got NO problem with that.
But you cannot turn a man into a woman!!! You only have to look at Caitlyn Jenner - outwardly the appearnce is as female as can be arrived at in someone who passed through male puberty many years ago. But the behaviours are 100% male, the thinking (at least in my opinion). Whilst Jenner may have felt 'wrong' in the male body he was born into at that time, the attitudes to him from others, his sporting career etc and so forth were all experienced and lived AS A MAN. Someone like this cannot possibly ever consider that they are 'a woman'.
Soon, you know what? There'll be no woman or man. In fact trans gender women also won't be able to call themselves women - because there'll be no women. We'll have no genders at all and will ALL lose our uniqueness. And I absolutely support anyone who feels trapped in the wrong body - that would be an awful situation for someone to be in and not be able to do something about it and I have no problem at all with this. But to say you've turned into 'a woman'. No, you're not having my womanhood that is bourne of my upbringing from day 1 and my experiences of 51 years being a woman - that is something you cannot replicate. 'As a woman' for me is the furthest it should and can actually go.
But this is SUCH a complex issue. It's one thing a bloke who changes to female dress and transitions (to whatever extent) at the age of 30, and a child of 5 who knows and expresses and is listened to that they actually don't feel like a boy and obviously just got the wrong body who never go through male puberty.
I can't figure out the practicalities of it because it is so very complex. All I know is, if you're in the wrong body and you want to change your appearance to right that wrong - you have my 100% support. But you want to tell me you're a 'woman'. No. Must we give up anything else about ourselves as women - our actual womanhood?!
I'm not trying to be PC, I'm not trying not to be PC, I've got no problem with those who want to change their appearance to feel 'right', these are just my unedited, rambling reactions to this subject.