Omfg just let the trannies do their own thing.
Should government identify them as what they have changed it to? Yes
Is it a mental disorder? Maybe, but I'm not sure.
But let them do what they want. If they biologically changed it: more power to them, you should probably recognise them as the gender they have changed to. If they say they are a "man trapped in a woman's body" (or vice versa), then I disagree. This would simply enforce male and female stereotypes that such SJWs want to avoid, no? If a woman is into biking, tattoos, sex with other women, etc. that doesn't make her a "man", that makes her a lesbian with different opinions. I don't understand how emotions effect what sex someone is, because imo that is defined by science, not opinion. It's your choice if you want to call that person male or female.
Should people go into loos based on how they "feel"? No, you need the correct genitals to go into a loo. Feelings are even more irrelevant here: no women, when they sit on a loo thinks "Hm, I totally feel like a man right now!" (and vice versa); I've covered this before.
Who cares if the majority of people don't feel comfortable with a grown man in the same bathroom as a young girl!
Weak argument. <devil's_advocate>Who cares if the majority of people don't feel comfortable with a grown gay man in the same bathroom as a young boy?</devil's_advocate>