An interesting question. However, if you understand that Christ bore the sins of the Elect only His body on the cross, then you understand why they are still on the others. The Lord Jesus Christ told the Pharisees "Unless you believe that I am He - You will die in your sins". Thus for the non-elect their sins follow them into that most awful place. But for the Elect, their stripes were borne on the cross by their Savior.
The idea that Christ paid for every-ones sins is currently the liberal loophole to allow all forms of adultery and perversion into the church. The understanding that the Christ died for the sins of the whole world makes sense when you see that it is the Elect of the whole world otherwise Christ's words to the Pharisees makes no sense - for how would their sins jump off the cross and back onto them? No- their sins never left them but followed for eternity.
Chrit’s suffering was big enough to pay for everyone’s sin, but the payment isn’t made for you unless you accept it.
How many ants would have to die to equal the death of a single human being? IMHO, the value of the lives of all the ants that have ever existed don’t equal the value of a single human being’s life.
The penalty for sin against God is death, and we are all sinners. How many human beings would have to die to equal in value God’s life? IMHO, if you added up all the lives of every human that ever lived, they still wouldn’t come close to equaling the life of God. Hence, when Jesus died on the cross, his death (since he was God) was more than enough to pay for the death penalty of every human being.
That doesn’t mean the payment is automatic. Each person still has to accept the payment. The offer is there if you want it, but God isn’t forcing anying to take it.