Your post displays an impressive lack of understanding.
First, what does scripture say?
In a message delivered in front of large crowd of unbelievers the Apostle Paul said:
Acts 17:30-31 30 "Therefore having overlooked the times of ignorance, God is now declaring to men that all people everywhere should repent, 31 because He has fixed a day in which He will judge the world in righteousness through a Man whom He has appointed, having furnished proof to all men by raising Him from the dead.”
Paul did not say that all people everywhere should repent just for the sake of it. He said that because of the proof of the resurrection, God is going to judge the world and because of that reason all people everywhere should repent. So, there is the imperative – the command. Can all men repent (and by inference believe)? Will all men repent and believe? Again, what does scripture say?
Ephesians 1:4 4 just as He chose us in Him before the foundation of the world, that we would be holy and blameless before Him.
God the Father chose the Elect for salvation from eternity past. He did not choose them based on any merit they possessed. No one who comes to faith in Jesus Christ is worthy of that faith. Salvation – all of it – is the gift of God (Ephesians 2:9).
If only the Elect will come to faith in Christ, why preach the gospel? Once again, to scripture:
1 Corinthians 1:21 21 For since in the wisdom of God the world through its wisdom did not come to know God, God was well-pleased through the foolishness of the message preached to save those who believe.
God has ordained the means of salvation (the preaching of the gospel) as the method of calling His elect. Why? I know this is getting redundant but back to scripture we go:
1 Corinthians 1:22-25 22 For indeed Jews ask for signs and Greeks search for wisdom; 23 but we preach Christ crucified, to Jews a stumbling block and to Gentiles foolishness, 24 but to those who are the called, both Jews and Greeks, Christ the power of God and the wisdom of God. 25 Because the foolishness of God is wiser than men, and the weakness of God is stronger than men.
The preaching of the gospel is as much a proclamation of judgment to those who reject Christ as it is a message of hope to the Elect.
Lastly, none of us possess perfect knowledge. We do not possess spiritual 3-D vision whereby we can peer into a person and determine whether they are elect. So, we proclaim the gospel to all and do not concern ourselves with whether a person is elect. The hidden things belong to God and He has not chosen to reveal the identity of the Elect to anyone but the Son. So, we can (and should) proclaim with boldness, “Believe on the name of the Lord Jesus Christ and you will be saved!”