No, it isn't. This is not the case for any sin. That passage must be read in the context of all of Scripture.
One cannot sin against God in ways that one as no control over. We are all, without exception, the product of sin, which makes us all less than perfectly pure. We become pure only in Christ. (The full meaning of being in Christ includes that we never sin. 1 John has a lot about this.)
"Vile affections" isn't clear enough?
Like I said in my post, it is something you have control over, if it weren't then I would have never been able to repent. I was actually able to see the sin gradually disappear in my own eyes due to my efforts, desire for it to be rid of, and repentance. It took time, but it did go away completely.
Saying that we no longer sin because we're in Christ is no excuse to sin. While it's true that our sin nature is the one sinning and it's no longer us, scripture tells us in many places not to sin after having been justified. While there are some sins that are stubborn and some sins that will remain for quite a while, that doesn't mean we don't actively strive to rid ourselves from these sins, pray for them to be rid of, etc.
For example, lust for a woman is sin, but I dare say that no man in this life will overcome that sin because it's so strong. God knows that sin is strong, in fact many places in scripture man's lust for a woman is shown as a very strong force. But notice God doesn't call it a vile affection. In fact, before calling homosexual desire a vile affection, Paul writes that they actually left their natural desire for woman. Notice Paul calls that desire natural.
You really believe that something that is called a vile affection, something that is detestable, is something we can't be rid of? If you seek to rid yourself of homosexual desires, it will take time, but if you truly want them gone you can rid yourself of it. It's up to the person who has them, and whether they want it gone or not, how strongly they desire for it to be rid of.
1 Corinthians 6:12-13
All things are lawful unto me, but all things are not expedient: all things are lawful for me, but I will not be brought under the power of any.
Meats for the belly, and the belly for meats: but God shall destroy both it and them. Now the body
is not for fornication, but for the Lord; and the Lord for the body.