I would argue it's selfish and wrong the other way, Naomi -- especially as you seem determined to characterise me as "possibly a creep", as opposed to almost certainly not one. What bothers me as well is how selfish you seem to think I am, despite the fact that it's you who seems determined to dictate how I dress (and where I pee), according to your discomfort. Which is fairly presumptuous, to say the least, and for that matter relies on you noticing in the first place. I mean, do you usually scrutinise all the people who enter public toilets to ensure that they are who they appear to be? Or do you not pay any attention, because after all, it's none of your business?
And, like I asked earlier, the knock-on effect is that people who are clearly, outwardly, men, would have to share your bathroom instead. Is that really preferable to people who are outwardly women?
But anyway, never mind. The law in the UK is, for now, on my side. So I guess you'll just have to get used to it.