No need to apologise for being graphic, or for anything else for that matter. I'm not asking you to pander to my sensitivities. I don't see it like that, at least. In the first place they are hardly just "mine", and in the second place I don't think it's pandering.
"You may see yourself as a woman, but the simple fact is you’re not and you don't have a clue what it's like to be a woman."
The first I think it's best to leave open. For clarity's sake in the future let me stick to "I don't really know", for now, and if it ever comes up again then bear that in mind. The second two? I suppose not. But never mind. I would argue that you are referring to what it's like biologically to be a woman, and I can hardly argue with that, but socially it's a different matter. Whether or not the distinction matters is, I suppose, the endless debate on this issue.
The way in which we separate people into different toilets is either biological, or it is social, and we had better make up our mind which. Put another way, who would you rather share a toilet with? "Her"...
http://rodfleming.com/wp-content/uploads/2015/06/IJustNeedToPee-x400.jpg
or "him"
http://cdn1.theweek.co.uk/sites/theweek/files/styles/theweek_insert_main_image/public/8/88//150310-bathrooms.jpg?itok=l4HnCzdu
?
Or, perhaps, neither of them? But if transpeople are to live publically, it has to be one or the other, really.