I mean, is it not indicative that something is wrong when your body is clearly designed for a certain thing yet your brain wants it to do another? Maybe "illness" isn't the right word, but it's very obviously NOT normal when you are born with a penis and you want a vagina, that just makes zero sense from an evolutionary standpoint.

I'm not saying homosexuality is wrong or being trans is wrong in a moral sense. I do think it is a disorder. We call people who think they're the center of the universe narcissists and we call it a mental disorder. We call people who hate themselves and their lives depressed and label it a mental disorder. We call people who lack empathy psychopaths and label them as having a mental disorder. None of the people with these disorders can control how they feel and they even have different brains just like a trans or homosexual person. Yet even though on paper being trans or gay checks all the boxes of a mental disorder, calling it so is seen as a bad thing?

I have depression. I can just as easily say I was born this way and my depression is a way of expressing my identity (and in some ways I do think it is). I'm fine with being labeled as "wrong" or having a "disorder". It doesn't define me and neither should your gender.