You might as well advocate full blown Gnosticism if you believe all that. Look at what you have written.
"That however does not mean that they will never fall to temptation. Nor does it mean that if they do, they are damned to Hell. It is only their flesh which sins because from the heart they desire to abstain from sin." is a pure Gnostic statement.
Now read this...
https://en.wikipedia.org/wiki/Gnosticism
You blame sin on the flesh body and even go so far to say that one can be engaged in wickedness in the flesh whilst not sinning in the spirit.
Only the flesh which sins? The flesh is merely the vehicle we are housed in and we are to bring it into subjection to the Spirit of God.
If the flesh was a motor vehicle surely you would be advocating that a motor vehicle drives itself apart from the direction given by the driver. It is the same logical premise.
The Bible speaks of...
Rom 8:13 For if ye live after the flesh, ye shall die: but if ye through the Spirit do mortify the deeds of the body, ye shall live.
Rom 8:14 For as many as are led by the Spirit of God, they are the sons of God.
Yet you contend the very opposite in that one does not have to mortify the deeds of the body in order to live.
John writes....
1Jn 2:4 He that saith, I know him, and keepeth not his commandments, is a liar, and the truth is not in him.
1Jn 2:5 But whoso keepeth his word, in him verily is the love of God perfected: hereby know we that we are in him.
1Jn 2:6 He that saith he abideth in him ought himself also so to walk, even as he walked.
Yet here you are saying that one does not have to "walk as he walked" because it is only the "flesh that sins."
Thus you speak of a "desire" to abstain from sin and "they will" conquer sin. WHEN?
You have just enjoined salvation and rebellion together, thus under your belief system you can have a child molester actively engaged in the molesting of children and yet be saved, forgiven and destined for the kingdom. Can you not see the absurdity of what you believe?
The Bible contends for purity, holiness, righteousness, patiently enduring in doing good. Do you contend for that? No you don't. You contend for being able to sin and not surely die and blame sin on the flesh body just like a Gnostic.