Well, as I understand it, you also don't believe the bible is God's word to man or FROM God... so...... what's the point? You simply decide what truth is as per your opinions & feelings. (which is a whole other thread so I won't belabor that problem here).
Did you skip over the commentary piece that explains the shame of nakedness?
And if you don't feel any shame with open nudity exposed to the outside world, there's a source problem (stemming from the first paragraph issue).
I shouldn't have to (and don't need to) tell you what God put in us to feel naturally when exposed (which the knowledge of sin brought at the fall) - it's hardwired into all of us spiritually which Adam and Eve immediately understood in their spirits. It's as inherant as the sin nature - it comes with it.
Rebellion to God & His statutes causes us to lose sensitivity to what is shameful and sinful (dulling the conscience). Once the conscience is dulled or "dead" to God's Spirit working in our conscience to be sensitive to what's right and wrong, we can carry out & promote sin without feeling much of any guilt, shame, remorse or sorrow - or even brainwash ourselves that evil is good!
commentary on Rom 2:14-15 - good & evil; what we know by nature:
2. (
14-16) Possession of the law is no advantage to the Jew in the Day of Judgment.
For when Gentiles, who do not have the law, by nature do the things in the law, these, although not having the law, are a law to themselves, who show the work of the law written in their hearts, their conscience also bearing witness, and between themselves their thoughts accusing or else excusing them) in the day when God will judge the secrets of men by Jesus Christ, according to my gospel.
a.
Although not having the law, are a law to themselves: Paul explains why the Gentile can be condemned without the law. Their
conscience (which is
the work of the law written in their hearts) is enough to condemn - or, theoretically, enough to justify - them.
i.
Written in their hearts: Many pagan authors of Paul’s day referred to the “unwritten law” within man. They thought of it as something that points us to the right way. Though it is not embodied in written laws, it is in many ways more important than written laws.
ii.
A law to themselves does
not mean that these “obedient Gentiles” made up their own law (as we use the expression “law unto himself”

, but that they were obedient to
conscience, the work of the law residing in themselves.
iii. “He indeed shows that ignorance is in vain pretended as an excuse by the Gentiles, since they prove by their own deeds that they have some rule of righteousness.” (Calvin)
b.
Their thoughts accusing or else excusing them: In theory, a man might be justified (“excused”

by obeying his conscience. Unfortunately, every man has violated his conscience (God’s internal revelation to man), just as every man has violated God’s written revelation.
i. While Paul says in
Romans 2:14 that a Gentile, may,
by nature do the things contained in the law; he is careful to not say that a Gentile could
fulfill the requirements of the law by nature.
ii. Though God has His
work within every man (resulting in conscience), man can corrupt that work, so that conscience varies from person to person, and our consciences can be damaged, and even restored in Christ.
iii. If our conscience is condemning us wrongly, we can take comfort in the idea that
God is greater than our heart. (
1 John 3:20)
c.
Their conscience also bearing witness: People who have never heard God’s word directly still have a moral compass that they are accountable to - the
conscience.
i. “God is describing how He has constituted all men: there is a ‘work’ within them, making them morally conscious.” (Newell)
ii. “He is not saying that the law is written on their hearts, as people often say, but that the
work of the law, what the law requires of people, is written there.” (Morris)
d. On the
day when God will judge the secrets of men, no man can find refuge from God’s judgment by claiming ignorance of His written revelation; violation of God’s internal revelation is enough to condemn us all.
i. “God therefore will judge all nations according to the use and abuse they have made of this word, whether it was written in the
heart, or written on tables of
stone.” (Clarke)
1 Tim. 4:1-2
The Great Apostasy
1 Now the Spirit expressly says that in latter times some will depart from the faith, giving heed to deceiving spirits and doctrines of demons,
1 Tim 4:2 commentary piece on a seared conscience
2. (
2-3) The nature of their departure from the faith and embrace of the doctrines of demons.
Speaking lies in hypocrisy, having their own conscience seared with a hot iron, forbidding to marry, and commanding to abstain from foods which God created to be received with thanksgiving by those who believe and know the truth.
a.
Speaking lies in hypocrisy: This describes those who depart from the faith. This certainly means those who willingly embrace falsehood to justify their sin or pride; but it also refers to those who
claim to be teaching the Bible, while just using it as a prop for their own ideas.
b.
Having their own conscience seared: Their conscience, which at one time would have convicted them of their departure from the truth, now doesn’t reply at all. It is as if the nerve endings of their conscience have been burnt over and are dead to feeling.
i. Paul here refers to the ancient practice of
branding a criminal on the forehead with a distinguishing mark. For these, it was not their forehead that was branded with a hot iron, but their
conscience instead.
ii. “They bear the marks of their hypocrisy as evidently and as indelibly in their conscience in the sight of God, as those who have been
cauterized for their crimes do in their bodies in the sight of men.” (Clarke)
iii. Paul knew what it was to have a dead, burned conscience. Before he surrendered his life to Jesus Christ on the road to Damascus, he felt completely justified in his persecution of Christians and hatred of Jesus. He could feel justified because his conscience was seared and needed a wake-up call - which the Lord graciously provided.