Lets take the early american Indians before anyone came over to teach them spiritual things. From the history that we have of them, we see that they worshiped a higher being and believed that when they die they will go to a happy hunting ground.
How wonderful! Yet there are other cultures who have the same belief, but this doesn't equate to repentance unto life or regeneration.
These beliefs are evidence that God had regenerated them and put his Spirit within them because the natural man, void of the Spirit cannot understand spiritual things.
You are saying it is evidence, but, they had never heard the Gospel therefore you do err.
Nope, sorry, this is evidence that they had a god whom they served just like other cultures. There is no place in Scripture wherein man was saved without believing, and concisely believing in the salvation wrought by Christ specifically or the God of Scripture.
Let's take your false gospel even further, those who believe in nirvana, and that they will go there are regenerate. Therefore Hindu's and Buddhist's are regenerate (even though most Buddhist's don't even believe in God or a god). Furthermore, all people who believe they are going to a better place are regenerate, all according to your false gospel, of course.
God secured his elect by his Son's death on the cross.
Of course, but the glaring problem is you determining who the elect are.
All of God's elect were eternally saved, in covenant, on the cross.
Yet were under wrath, and God granted them that eternal life in time, not prior. Ephesians 2:3.
Those souls that were saved on the cross will be the only eternally saved souls.
That's a given, and those should know this via the Gospel, and we don't know who they are via mysticism and claiming people groups or cultures regenerate.
Sometime during their life here on earth God will regenerate them, as he did the elect of the native Americans.
There you go again, declaring a pagan group elect, without Christ, without the Gospel.
Accepting Jesus, repenting, confessing and such like is not the cause of your eternal salvation because it would not be by God's grace, but the works of man as you believe.
Nope, sorry you would be incorrect still and full of assumptions. As I've stated numerous times on here, and as some can attest, those things don't clinch salvation, but are evidence of conversion, a conversion that takes place in time that is eternal salvation. Therefore this is not "as
believe."
I'll end with this: Paul preached the Gospel, relentlessly, 2 Timothy 2:8-10. Why? So the elect would be saved, because it is apparent they were not already saved or regenerate until they heard the Gospel.