If God refuses to allow millions of sinners any possibility of getting saved then He is not a merciful God in Calvinist theology.
It's far far worse than that, marke!
It is NOT that God doesn't allow sinners to get saved. The concept of someone allowing something to happen or not presupposes that its possible for it to happen in the first place. God doesn't merely allow sin, He ordains it. He doesn't merely disallow some sinners to become saved, He actively and ARBITRARILY causes their condemnation! It isn't merely their lack of repentance but their sin that God ordains, predestines and causes to take place.
“The devil, and the whole train of the ungodly, are in all directions, held in by the hand of God as with a bridle, so that they can neither conceive any mischief, nor plan what they have conceived, nor how muchsoever they may have planned, move a single finger to perpetrate, unless in so far as he permits, nay unless in so far as he commands, that they are not only bound by his fetters but are even forced to do him service” (John Calvin, Institutes of Christian Religion, Book 1, Chapter 17, Paragraph 11)
“thieves and murderers, and other evildoers, are instruments of divine providence, being employed by the Lord himself to execute judgments which he has resolved to inflict.” (John Calvin, Institutes of Christian Religion, Book 1, Chapter 17, Paragraph 5)
“We hold that God is the disposer and ruler of all things, –that from the remotest eternity, according to his own wisdom, He decreed what he was to do, and now by his power executes what he decreed. Hence we maintain, that by His providence, not heaven and earth and inanimate creatures only, but also the counsels and wills of men are so governed as to move exactly in the course which he has destined.” (John Calvin, Institutes of Christian Religion, Book 1, Chapter 16, Paragraph 8)
“We cannot assign any reason for his bestowing mercy on his people, but just as it so pleases him, neither can we have any reason for his reprobating others but his will.” (John Calvin, Institutes of Christian Religion, Book 3, Chapter 22, Paragraph 11)
"All are not created on equal terms, but some are preordained to eternal life, others to eternal damnation; and, accordingly, as each has been created for one or other of these ends, we say that he has been predestinated to life or to death. (John Calvin, Institutes of Christian Religion Book 5, Chapter 21, paragraph 5)
And don't be tempted to think these to be rare beliefs within Calvinist circles. They aren't. John Calvin's "Institutes of Christian Religion" is the very fountain head of Calvinism. This is precisely what they believe and I have yet to find a single solitary Calvinist who would voice disagreement with any of these statements from Calvin and many others like it.
Calvinism's god isn't merely unmerciful, it is unjust and outright evil.
Clete