Momiji is a trasnsexual? Hatsuharu is gay? Ayame is...? Whaaaaaaiiiiiit a minute. Where where WHERE are you getting your info?
First of all: The term is Bishonen. It means (literally) "pretty boy". So yeah, guys in anime tend to be on the girlie side.
Second: Transexual: Noun:
"A person who has a psychological urge to belong to the opposite sex and to live as a member of the opposite sex and who may be motivated by the urge to acquire the necessary physical appearance (as by surgery or hormone use) or to adopt the social role typical of the opposite sex."
-Merriam Webster Medical Dictionary
Or, after the fashion of Anime: Ranma is a transexual...(Though I don't think he has a choice...)
I think maybe you mean transvestite, or crossdresser.
And no, Momiji is not a crossdressor. He just has a wicked sense of fashion (and honestly-he IS too young to be wearing the boy's school uniform-I agree with Haru on that) and hasn't grown out of that 'giggly' age. Comon people, he's a little kid.
Now, I have to make a concession here with Ayame. While what he normally wears around isn't exactly manly, it isn't women's clothing either (you might as well say that Okita is a cross dressor because he wears a kimono-you can't forget to make allowences for culture).
That said: The whole fan world did see Ayame in that wedding dress after all. Ayame is Ayame, and no one (except maybe Yuki) is complaining.
Thirdly, and Lastly (for now): Haru isn't gay. What about Rin? And I didn't hear Haru ever tell Yuki "I'm in love with you." or "Aishiteru" or whatever. He said that Yuki was his first love, that Yuki was special to him. When you are six years old, gender doesn't matter because sex (hopefully) hasn't entered the equation yet. My first love was a girl-and I'm a prude.
Akito is...interesting. I keep hearing rumors, I wonder if the producers of the anime knew where the author was going when they drew Akito... But I'm going to shut up because I don't want to spoil anything.
Yell at me, flame me, whatever. I'm just saying that your source is being lied to if they're telling you that Momiji is a transexual and Hatsuharu is gay... Too little evedence, too many factors saying the opposite.
Not that that whole family doesn't have some serious issues.