Jesus bore the sins of the world in His sinful flesh nature. God justly condemns sins and sinfulness. However, in the case of Jesus, He was born in a born-again state, meaning He was born with all the implanted "new" traits and attributes. He never sinned. Therefore, He was sinless.

Correct - "we" (born-again believers) are not condemned while we are abiding in Jesus. Nevertheless, our sinful flesh continues to stand condemned in the sight of God due to its sinfulness.

Is this how Jesus was? Did His flesh "stand condemned in the sight of God due to its sinfulness"?

The lower passions have their seat in the body and work through it. The words "flesh" or "fleshly" or "carnal lusts" embrace the lower, corrupt nature; the flesh of itself cannot act contrary to the will of God. We are commanded to crucify the flesh, with the affections and lusts. How shall we do it? Shall we inflict pain on the body? No; but put to death the temptation to sin. The corrupt thought is to be expelled. Every thought is to be brought into captivity to Jesus Christ. All animal propensities are to be subjected to the higher powers of the soul. The love of God must reign supreme; Christ must occupy an undivided throne. Our bodies are to be regarded as His purchased possession. The members of the body are to become the instruments of righteousness. {AH 127.2}

The flesh is not sinful

Though I have seen some evidence in support of this, I'm not ready to say that the desire to sin entirely disappears. Here are texts:

I know this was asked almost six years ago without a response from anybody.

What is the response/answer to that question?

Just a question --
If the flesh is not sinful why is it called sinful flesh?

The flesh contains the "carnal lusts" and "embraces the lower, corrupt nature" with its "animal propensities".
( those words are from the very quote given)

So yes the flesh is sinful.

Now it's true the flesh cannot do anything on its own, either against or according to the will of God. Just like a severed arm cannot lift anything, and a severed leg cannot walk, or a quadriplegic whose limbs of flesh have no nerves connecting them to the brain center can do nothing.
The "flesh" needs the brain to tell it what it should and should not do.

The problem however arises in the fact that the brain is also part of the "sinful flesh".
The brain can be divided into two major parts: the lower brain stem and the higher forebrain. The forebrain deals with decision making, emotions, conscious actions, and intelligence.

This part of the brain needs to be tuned in to God, totally, in order to bring into "subjection to the higher powers" the sinful flesh.

However, there is also the "lower brain stem" that takes care of things without consulting the "higher brain". It carries out many vital functions of the body for maintenance and survival such as breathing, heartbeat, and blood pressure, digestion, sleeping and waking, sneezing and swallowing. It is the body’s “autopilot.”

The problem is that "autopilot" tends to be the 'default' mind condition for a large percentage of our waking time as well. Habits learned are done WITHOUT THINKING. Natural emotions jump in before we even turn on the "higher levels" of the brain.

For example -- you drive along, your mind in "autopilot" you've driven it so often you make all the right turns without even thinking, suddenly someone cuts in front of you. You slam on your brakes and feel scared and indignant and start cursing under your breath about the rudeness and stupidity of the other driver. All of that was "auto-pilot" reaction, without actual making a deliberate choice of any kind.

Another example of "auto-pilot" -- you did make a choice to go shopping, hop into the car, and after driving for a while you find yourself at your work place -- "auto-pilot" took over and told your flesh which turns to take, (your usual travel route, but not the one you had intended to take that day!}

Thus it is with sin.
Auto pilot will tell your flesh to sin. And you will sin without even thinking!

To break the "auto pilot" of sinful behavior takes --
first of all --

1. Constant abiding in Christ -- to be tuned in to God, totally, in order to bring into "subjection to the higher powers" the sinful flesh.
2. Intentional thinking. It's so easy to lapse into "auto pilot" thinking, letting the mind wander into whatever information is already stored in your brain.
3. Filling the mind with truth, so when the mind does go into "auto pilot" it will find truth in your brain to mull over.
4. Building productive habits, so when you lapse into "auto pilot" you will do the good.
5. First and last -- constant abiding in Christ, pray without ceasing, depend upon Christ, reflect upon His life, -- that's where the real battle is! Stop focusing on self, and focus on Christ, He will write His laws in your heart and mind.

Christ came to the earth, taking humanity, and standing as man?s
representative, to show in the controversy with Satan that man, as
God created him, connected with the Father and the Son, could obey
every divine requirement.?The Signs of the Times, June 9, 1898.
Christ is called the second Adam. In purity and holiness, con-
nected with God and beloved by God, He began where the first Adam
began. Willingly He passed over the ground where Adam fell, and
redeemed Adam?s failure.?The Youth?s Instructor, June 2, 1898.
In the fullness of time He was to be revealed in human form.
He was to take His position at the head of humanity by taking the
nature but not the sinfulness of man. In heaven was heard the voice,
?The Redeemer shall come to Zion, and unto them that turn from
transgression in Jacob, saith the Lord.??The Signs of the Times,
May 29, 1901.
When Christ bowed His head and died, He bore the pillars of
Satan?s kingdom with Him to the earth. He vanquished Satan in the
same nature over which in Eden Satan obtained the victory. The
enemy was overcome by Christ in His human nature. The power of
the Saviour?s Godhead was hidden. He overcame in human nature,
relying upon God for power.?The Youth?s Instructor, April 25,
1901.
In taking upon Himself man?s nature in its fallen condition,
Christ did not in the least participate in its sin. He was subject
to the infirmities and weaknesses by which man is encompassed,
?that it might be fulfilled which was spoken by Esaias the prophet,
saying, Himself took our infirmities, and bare our sicknesses.? He
was touched with the feeling of our infirmities, and was in all points
tempted like as we are. And yet He ?knew no sin.? He was the
Lamb ?without blemish and without spot.? Could Satan in the least
particular have tempted Christ to sin, he would have bruised the
Saviour?s head. As it was, he could only touch His heel. Had the
head of Christ been touched, the hope of the human race would
have perished. Divine wrath would have come upon Christ as it
came upon Adam.... [b]We should have no misgivings in regard to
the perfect sinlessness of the human nature of Christ.[/b[?The S.D.A.
Bible Commentary 5:1131.