In theory you are correct. Except I have a feeling that you --yes even you -- are incorrigible in sin. I bet there are times at work or at home when you put the idol of money before God, and then try to justify it to yourself. I bet there are times when you put love of country before God's commandments, and then try to justify it. The worst thing is, I bet you still justify it to yourself.
We all do.
I wouldn't deny that--every human is incorrigible in sin... however scripture is clear we can repent of sin...even if it keeps following us around to the day we die. My only goodness and only hope is in my union with Jesus Christ, and His sinless life, and death, on my behalf.
As someone mentioned above what we call today an out of the closet "homosexual" is someone who totally identifies themselves by a particular sexual sin. It would be like someone going around saying "I am a proud Adulterer!"
The whole Christian life is one of repentence. As Luther put it in the 1st of his 95 Theses "When our Lord and Savior said 'Repent' He meant the entire life of a Christian is to be one of repentence."
I don't have trouble with people admitting they struggle with homosexual temptation...as I struggle with hetrosexual temptation, when however they say, its not a sin, not a perversion....then, I do have trouble with that. Repentence, and the forgiveness and healing God offers, starts with admitting one is wrong. Without that a person is lost--and they cannot accept God's forgiveness, as their hands are full clutching to their own sin.(another example from Luther, I believe)
Of course I don't really know if VP Chaney is anything but a cultural Christian...so perhaps this whole discussion is moot. I do think it is a sad indightment on where we are as a culture, that when parents JUST accept kids' sins (as the example above...letting a son sleep with his girlfriend in your house) they are considered enlightened, loving, kind and tolerant. It's not loving letting loved ones slip into hell.