This does not address the fact that the seed DOES NOT produce fruit in the person that has the seed snatch from their heart... as you claim.
What is really going on within unbelievers JLB, according to the scriptures? It's quite easy to see that there is a spiritually adverse agent, Satan, the god of this world, the prince of the power of the air, the spirit of disobedience upon such minds. It's quite easy to see in Mark 4:15, Acts 26:18, Romans 11:8, 2 Cor. 3:14, 2 Cor. 4:4, Eph. 2:2 and many many other citings.
This shows us that there are "other things" going on where The Word is sown that have to do with another agency altogether that is NOT MAN. Satan is moved to resist the Word, exactly as God said it would be in Gen. 3:15.
This Divine dynamic tension is an integral part of both the scriptures and life on earth. It's not all about "just and only mankind."
We all still do have "issues" with the flesh and the spirit:
2 Corinthians 7:1
Having therefore these promises, dearly beloved, let us cleanse ourselves from all
filthiness of the flesh and spirit, perfecting holiness in the fear of God.
Jesus WILL come through for us. But this does not speak to the "whole" equations of what is really going on on earth. There is also judgment against these parties that is also going on:
Ephesians 6:
11 Put on the whole armour of God,
that ye may be able to stand against the wiles of the devil.
12 For
we wrestle not against flesh and blood, but against principalities, against powers, against the rulers of the darkness of this world, against spiritual wickedness in high places.
This is not a complex thing to understand. When we turn our sights where Divine Judgment belongs, we might see more than just "man" or just "believers" involved.
God in Christ does save believers, unquestionably. And simultaneously "condemns" the adversaries that "we" wrestle with. That wrestling transpires in our own flesh, because it is there that these things do exist:
2 Corinthians 7:1
Having therefore these promises, dearly beloved,
let us cleanse ourselves from
all filthiness of the flesh and spirit, perfecting holiness in the fear of God.
The cleansing is only to be found in seeing
what/who the problem is, and DIVIDE ourselves from that working that is not us (no more "I"
that DO IT), Romans 7:17-21. But DO IT it does.
Solomon spoke well when he commanded the child to be cut in half.
So did Jesus when He said He came to DIVIDE:
Luke 12:
51 Suppose ye that
I am come to give peace on earth? I tell you, Nay; but rather
division:
Matthew 10:34
Think
not that I am come to send peace on earth:
I came not to send peace, but
a sword.
It is not possible to make
our spiritual adversaries compliant JLB, and that's all there is to it. One will be saved. The other, lost.