You are free to believe what you want, I prefer to read from the scriptures that Paul said that there are none that seek, none that understand.
Did you bother to look up the scripture that Paul was referring to there?
Psalm 14:1
The fool says in his heart, “There is no God.” They are corrupt, their deeds are vile; there is no one who does good. 2 The Lord looks down from heaven on all mankind to see if there are any who understand, any who seek God. 3 All have turned away, all have become corrupt;
there is no one who does good, not even one. 4 Do all these evildoers know nothing? They devour my people as though eating bread; they never call on the Lord. 5 But there they are, overwhelmed with dread, for
God is present in the company of the righteous. 6
You evildoers frustrate the plans of the poor, but the Lord is their refuge.
This is talking specifically about those who say there is no God. Even before I became a Christian, I didn't deny that there is a God. Many non-Christians don't claim that there is no God. The ones who do not seek and do not understand are those who say there is no God. They are contrasted with "my people" (God's people), so that's not talking about all people. It's talking particularly about the people who say "there is no God" and "devour my people as though eating bread" who "never call on the Lord".
If there were literally none who seek God, then that would contradict this verse...
Hebrews 11:6 6 And without faith it is impossible to please God, because anyone who comes to him must believe that he exists and that
he rewards those who earnestly seek him.
Your doctrine is based on cherry picked scriptures that you take out of context. It contradicts many other scriptures. You do not dig deep enough for the truth.
That means that if he is already asking, God is working in his heart. Paul doesn't know who is going to be saved, just like we don't know, but if someone comes up and shows a lot of interest, then it is a clue that God is already working in them.
But, even when someone is showing interest, it's not a guarantee that the person will be saved. Read this...
Matthew 13:19 “Listen then to what the parable of the sower means: 19 When anyone hears the message about the kingdom and does not understand it, the evil one comes and snatches away what was sown in their heart. This is the seed sown along the path. 20
The seed falling on rocky ground refers to someone who hears the word and at once receives it with joy. 21 But since they have no root, they last only a short time. When trouble or persecution comes because of the word, they quickly fall away. 22 The seed falling among the thorns refers to someone who hears the word, but the worries of this life and the deceitfulness of wealth choke the word, making it unfruitful. 23 But the seed falling on good soil refers to someone who hears the word and understands it. This is the one who produces a crop, yielding a hundred, sixty or thirty times what was sown.”
Look at verses 20 and 21 in particular. See how someone can be interested and even accept the gospel message with joy for awhile? Yet, they later fall away because of trouble or persecution. So, even if someone is showing interest it's not a guarantee that they are someone who is one of God's elect who will end up in heaven. Paul and Silas would have given that answer to any person asking it, regardless of how interested they really were. And Paul and Silas would not have said that the same goes for anyone in the jailer's household in terms of what any of them had to do to be saved if it wasn't possible for all of them to be saved. Yet, they said that without even knowing if they were interested in knowing how to be saved or not.