I'm sorry, Hark, but again, I have to disagree.
But I can also tell you that I once saw it as you appear to.
Then one day it just started to hit me...
Salvation is of the Lord, start to finish.
Nothing I do in any way qualifies me to get anything from the Lord.
His promises were made to His children, His Son was sent, etc.
Nothing I do or did actually resulted in me gaining any of His gifts.
He simply decided to bestow them to me out of His goodness.
You need to clarify how those who remained unbelievers are not saved. Unbelievers have not received anything seeing how they are condemned already for not believing in the Son.
John 3:18 He that believeth on him is not condemned: but he that believeth not is condemned already, because he hath not believed in the name of the only begotten Son of God. 19 And this is the condemnation, that light is come into the world, and men loved darkness rather than light, because their deeds were evil. 20 For every one that doeth evil hateth the light, neither cometh to the light, lest his deeds should be reproved. 21 But he that doeth truth cometh to the light, that his deeds may be made manifest, that they are wrought in God. KJV
Look at how the disciples were led not to go to certain countries at that time but somewhere else.
Acts 16:6 Now when they had gone throughout Phrygia and the region of Galatia, and were forbidden of the Holy Ghost to preach the word in Asia, 7 After they were come to Mysia, they assayed to go into Bithynia: but the Spirit suffered them not. 8 And they passing by Mysia came down to Troas. 9 And a vision appeared to Paul in the night; There stood a man of Macedonia, and prayed him, saying, Come over into Macedonia, and help us. 10 And after he had seen the vision, immediately we endeavoured to go into Macedonia, assuredly gathering that the Lord had called us for to preach the gospel unto them. ~ KJV
God the Father knows whom is seeking Him from those that are not just as He knows who prefer their evil deeds rather than come to the light to be reproved of them. Since the Father is responsible for His work of our believing in Him, no believer can take that credit, but we should not deny that our belief & our faith in Him as given by God the Father in drawing us unto the Son is how we are saved. That is why Jesus said this to His disciples.
Matthew 7:6 Give not that which is holy unto the dogs, neither cast ye your pearls before swine, lest they trample them under their feet, and turn again and rend you. 7 Ask, and it shall be given you; seek, and ye shall find; knock, and it shall be opened unto you: KJV
When sinners tell Christians politely or otherwise, that they do not want to hear it, they should not preach, but leave the invitation to them that they can call on them when they do want to hear it & drop the subject to talk about something else or move on since it is on God to cause the increase.
1 Corinthians 3:5 Who then is Paul, and who is Apollos, but ministers by whom ye believed, even as the Lord gave to every man? 6 I have planted, Apollos watered; but God gave the increase. 7 So then neither is he that planteth any thing, neither he that watereth; but God that giveth the increase. ~ KJV
Our believing in the Son is God's work. Since it is our believing in the Son is how we are saved, we can thank the Father in Jesus's name for our belief.