Once again we see Calvinist fiction.
If a person has their sin burden (what God holds against them) removed, why is that just? Because God accepted the sacrifice of Christ for that sin, past, present and future. If a person is not placed into Christ, do they undergo the circumcision of Christ? Nope.
Col 2:11
and
in Him you were also circumcised with a circumcision performed without hands, in the removal of the body of the flesh by the circumcision of Christ,
So the removal of the sin burden occurs after God places a person into Christ and not before. Thus their is no "double payment" in the afterlife of the lost for their sin.
Here are the two views, the first bogus, the second valid:
1) God chose the elect individually before creation, Christ died only for the elect, thus paying then for their sin burden.
2) God chooses the elect individually during their lifetime based on crediting their faith as righteousness, then places them into Christ where their sin burden is removed, in accordance with Christ dying for all humanity. Christ became the means of salvation for all humanity (1 John 2:2) but only when a person is placed into Christ, does that person receive the benefit of His sacrifice.