LOL, Calvinists constantly accuse non-Cals of trying to usurp God's sovereignty with free will, but it is Calvinists that insist God could not choose to save those who freely believe.
Why oh why couldn't God choose to save persons who freely choose of their own free will to believe on Jesus?
If God wants to save only those who choose to freely believe on Jesus, and to damn those who refuse to believe on Jesus, who are you oh Calvinist to tell him he can't?
So, it's a ridiculous and nonsensical view. Calvinists have all sorts of bogus arguments like this that they have been indoctrinated with. Most cannot think well enough to see how foolish these arguments truly are.