Well, the thing that you have at least partially gotten but that many people seem to struggle with is that gender does not equal physical sex. Since gender consists of largely if not wholly socially-constructed concepts of what is “feminine” and what is “masculine”. These conceptions vary widely from culture to culture and in many cases even from generation to generation within a culture. Pink was about a hundred or so years ago widely used as a color for little boys in the west, while blue was seen as a virginal** girls color, which we still see evidenced by the Virgin Mary’s common depiction in that color. These associates are often rooted in what roles are expected of a member of one or the other gender in a society, someone wearing stiletto high heel shoes is literally incapable of doing hard physical labor for example.
While there are obvious tendencies among physical sexes to identify with one or the other gender there are exceptions. It is more than possible to be physically a member of one sex and identify with whatever traits a culture assigns to the gender associated with the opposite sex.
Another common mistake made is tying gender to sexuality. I have met male-to-female (MtF) transgendered people who are only attracted to females, in turn of course their are female-to-males (FtM) who only like men, and the whole Kinsey scale in-between. So a transgendered person is not “just a gay man/woman” as many mistakenly think.
Also might want to be careful using the word "tranny" since it was originally intended as an insulting term a lot of transgendered people have the "our word/taking it back" attitude that many black people have with the N-word and gay people have with the various derogatory names for them.
But then again, the Bible says you shouldn't lay with another man as a girl, so shame on trannies, I guess. But it's ok to bang another man as long as you're not the one that is like a girl.
Not meaning to insult anyone's religion here so I'll just give some examples from the Bible itself. The same book of the Bible with the restriction against homosexuality, Leviticus, also says it’s a sin to mix fabrics in your clothing (Leviticus 19:19), cut or shave your hair/beard (Leviticus 19:27), or eat lobster or shrimp (Leviticus 11:9-12). Leviticus also says unruly children should be killed (Leviticus 20:9), and the Bible indeed features an incident where God
rips to pieces 42 children via
bear attack for making fun of a guy for being bald. (2 Kings 2:23-24) Oh also people with flat noses, or who are blind or lame are not allowed to approach the altar of God. (Leviticus 21:17-18) These are just some of the many, many many loopy laws in Leviticus, Deuteronomy and elsewhere in the Bible which we no longer follow. Funny we don’t see as many people calling for the stoning of those who work on the Sabbath or adulterers like the Bible also commands? Cherry-picking parts of religious books is just an easy way to justify bigotry.
The fact is that the ancient Hebrews had no idea how physical reproduction works and they were facing an under-population crises at the time. So they thought homosexuality was “wasting” the vital life essence of a man which was expunged when he um *cough*. As far as they knew women were just a vessel for the man’s essence to gestate in. Given other such “enlightening” advice in the Bible, I feel it’s safe to disregard it’s restriction against homosexuality as it is every bit as silly and, since we are not ancient Hebrews, arbitrary.
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**All-important in societies where power/wealth etc. is traced through male lines, no one wants/wanted to be cuckold into giving his stuff to another man’s son, so absolute control of a woman’s life and sexuality by her paternal family and later husband was/is the ideal.