God does not send them to hell, thay make their own choice if they want heaven or hell.
Jesus was very clear in Luke 17:20-021, the kingdom of God, heaven and hell, does ntoc come with observation, it is within you. And that my friend is your own choice. Heaven or hell is not a place we go to to observe as Jesus said it doesnt, His kingdom is living and you are in one or the other this day.
As I said, it is one own choice, you made a choice, I made a choice, Jesus made a choice so obvious in Matt 3:16, the same choice that I made and us all who is saved from the laws that you teach by God Himself coming in us and opening up who He is and all of His heaven in us, that is what His salvation is.
You dont know what Gods salvation is do you? You are only guessing with noting tangible, reality from God Himself come to you as He does in us all who will.
He is at your door knocking this day and anyone who will let Him in, He will come to you and sup with you and be in you. Rev 3:20. That is what His salvation is, But obviously you have closed that door in favor of your own laws for your own ends for a salvation.
You really should consider the ways of Christ, Gods anointing.