Reformed Theology Is there a flaw in this argument?  Calvinism

Is there a flaw in this argument?

Reformed Theology Is there a flaw in this argument?  Calvinism
Is there a flaw in this argument?

Hey there reformed readers. Thomas McCall offered the argument below to identify a logical inconsistency in the determinists position. Obviously the conclusion (5) is incorrect but it seems to follow logically from (1) to (4) and is therefore a sound argument. Can the determinsts position be defended in light of this argument? What premise would need changing so a different conclusion can be drawn? Thanks.

(1) God truly loves all persons. (2) Truly to love someone is to desire their well-being and to promote their true flourishing as much as you can. (3) The true well-being and flourishing of all persons is to be found in a right relationship with God, a saving relationship in which they accept the invitation of the gospel and come to love him and obey him. (4) God could determine all persons freely to accept the invitation of the gospel and come to a right relationship and be saved. (5) Therefore all persons will be saved.

Hey there reformed readers. Thomas McCall offered the argument below to identify a logical inconsistency in the determinists position. Obviously the conclusion (5) is incorrect but it seems to follow logically from (1) to (4) and is therefore a sound argument. Can the determinsts position be defended in light of this argument? What premise would need changing so a different conclusion can be drawn? Thanks.(1) God truly loves all persons. (2) Truly to love someone is to desire their well-being and to promote their true flourishing as much as you can. (3) The true well-being and flourishing of all persons is to be found in a right relationship with God, a saving relationship in which they accept the invitation of the gospel and come to love him and obey him. (4) God could determine all persons freely to accept the invitation of the gospel and come to a right relationship and be saved. (5) Therefore all persons will be saved.
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Submitted by Loveyg03