A lot of this clears up once you accept sexuality and gender are a) not necessarily linked, and b) on a continuum or spectrum with general personality. It's why you can get butch, muscled, hairy gay daddys and really effeminate, camp, flamboyant, hairless, eccentric but ultimately straight men. The same goes with women obviously. Then somewhere in between this spectrum of personality types and identities are those who identify with the opposite gender, or no gender. I knew a person who was a genuine hermaphrodite with both sets of genitals, and they were truly androgynous. Sometimes they would rock up to work as a female, other times as a male, other times as an unidentifiable mix of the two. This sort of behaviour shouldn't be restricted to those with a physical abnormality, as fluctuations or diversions from chemical or hormonal 'norms' are just as valid a reason. There's no reason why this shouldn't extend to simple variation in personality types either. And if the only reason you have to hate, fear or judge people on their preference is "BUT THEY AREN'T A FEMALE AND I REFUSE TO PLAY ALONG WITH THEM, I HAVE RIGHTS TOO, ITS MY RIGHT TO CALL THE TRANS GIRL A MAN IF I WANT, FREEDOM OF SPEECH BITCH CONSTETOOTION!!!" then you should turn your judgement inward, because you are truly a sadder individual than those you judge so harshly.
Literally who gives a shit - you'll be dead and gone in a 100 years at best, and so will all those people you judged and all those people who judged you and all their friends and family and employers and all your idols and heroes. It seriously doesn't matter - if you choose to spend your life being a hateful git then good on you - you'll be dust around the same time as me.
I'm a straight dude too - I just don't buy into judgement. And I don't have a tumblr, I just have some decorum.
tldr - just get along.