It gets worse. There are some Calvinists (probably a minority) who hypothesize that God predestines infants who die before or very shortly after birth to eternal damnation or paradise based on His own whims. Some crap about how anything else being an affront to His Sovereignty.
Okay, well, I have no idea what to even say to something like that. That's goes beyond absurd.
SO, yOU THINK YOU KNOW BETTER THAN gOD? IT IS ONLY BY THEGgRACE OF gOD THAT ANYONE GOES TO HEAVEN! SCRIPTURE IS SAYS WE ARE ALL DEAD IN OUR SINS AND DESERVE ETERNAL DAMNATION. EVEN NEWBORN BABIES ARE BORN WITH THE SIN NATURE.
BEFORE TWINS WERE BORN, GOD SAID jACOB HAVE I LOVED AND EASU HAVE I HATED. SO WAS GOD WRONG TO LOVE ONE AND HATE THE OTHER EVEN WHILE THEY WERE UNBORN?
All Calvinists believe in God's Sovereignty. No Calvinist believes that God is whimsical. And I don't believe that anything can "affront" God.
God's vavor rests within the realm of his Soverignty:
11(For the children being not yet born, neither having done any good or evil, that the purpose of God according to election might stand, not of works, but of him that calleth;)
12It was said unto her, The elder shall serve the younger.
13As it is written, Jacob have I loved, but Esau have I hated.
14What shall we say then? Is there unrighteousness with God? God forbid.
15For he saith to Moses, I will have mercy on whom I will have mercy, and I will have compassion on whom I will have compassion.
16So then it is not of him that willeth, nor of him that runneth, but of God that sheweth mercy.
As for unbaptised or similarly: uncircumcised children? I look to David:
18And it came to pass on the seventh day, that the child died. And the servants of David feared to tell him that the child was dead: for they said, Behold, while the child was yet alive, we spake unto him, and he would not hearken unto our voice: how will he then vex himself, if we tell him that the child is dead?
19But when David saw that his servants whispered, David perceived that the child was dead: therefore David said unto his servants, Is the child dead? And they said, He is dead.
20Then David arose from the earth, and washed, and anointed himself, and changed his apparel, and came into the house of the LORD, and worshipped: then he came to his own house; and when he required, they set bread before him, and he did eat.
21Then said his servants unto him, What thing is this that thou hast done? thou didst fast and weep for the child, while it was alive; but when the child was dead, thou didst rise and eat bread.
22And he said, While the child was yet alive, I fasted and wept: for I said, Who can tell whether GOD will be gracious to me, that the child may live?
23But now he is dead, wherefore should I fast? can I bring him back again? I shall go to him, but he shall not return to me.
24And David comforted Bathsheba his wife, and went in unto her, and lay with her: and she bare a son, and he called his name Solomon: and the LORD loved him.