On your last couple sentences, what do you think when Jesus told
thr Pharisees they were of their father the Devil and when John talks about how to know if you are actually a child of God or not?
Non believers are not children of God until they are adopted by the Father through faith in Jesus And through God’a salvation plan.
I'm seeing all people as, eventually, the people of God as Jesus quoted the Psalms 82:6 "I have said, ye are gods, and all of you are children of the most High."
Jesus stops short of saying that all are one with God as he is, in that they loved darkness as their deeds were evil, but salvation was not possible while
he still lived as the atonement for sin had not been paid. But after the death and resurrection we see those whom served the devil receive grace and faith
and thus translated into the kingdom. This will happen to all men some day. Therefore give to all in need as all are your eventual brothers in Christ.
I do not say give to further iniquity, but need such as food and shelter and things that you would consider needful for yourself. "Love your neighbor as yourself?"
The majority of the world is not in Christ and that is by design as God is only choosing a small remnant for his first harvest.
John 12:32 "And I, if I be lifted up from the earth, will
draw ALL MEN unto me."
Psalms 22:27
"All the ends of the world shall remember and turn unto the LORD: and all the kindreds of the nations shall worship before thee."
Jer 31:34 "And they shall no more teach every man his neighbor, and every man his brother, saying know the LORD:
for they ALL shall know me, from the least of them to the greatest of them, saith the LORD: for I will forgive their iniquity, and I will remember their sin no more."
John 17:3 "And this is life eternal, that they might know thee the ONLY TRUE GOD, and Jesus Christ, whom thou hast sent."
As we see from our Lords own words that life eternal is to know them both. As scripture above states he will have all men drawn to him if he be lifted up from
the earth, and that of course already happened. Then we see where God says that ALL shall know him from the least to the greatest. I would say that in my mind
at least these verses make strong statements to the eventual salvation of all as all must know Jesus before they can know his Father as it is Jesus who reveals
the Father, and if ALL eventually KNOW GOD then how do you avoid life eternal for ALL?
Thus see the finished product as all converted unto the Lord and give as you are inclined, but not to iniquity.
This makes forgiveness much easier as well if you see them as your brothers etc even though they are not yet.