Why does God hate babies who have not sinned?

[Tea Earl Grey Hot]

19 You will say to me then, "Why does he still find fault? For who can resist his will?"
20 But who are you, O man, to answer back to God? Will what is molded say to its molder, "Why have you made me like this?"

Um, yes, I will. It's a perfectly legitimately question.

21 Has the potter no right over the clay, to make out of the same lump one vessel for honorable use and another for dishonorable use?

This is a false analogy. You cannot make clay into feeling, conscious, self aware beings with thoughts and desires.

22 What if God, desiring to show his wrath and to make known his power, has endured with much patience vessels of wrath prepared for destruction,
23 in order to make known the riches of his glory for vessels of mercy, which he has prepared beforehand for glory

Then God is a narcissistic jerk. Why does he need to show his power? I thought he was self-sufficient? He doesn't have needs.

If he couldn't figure out a way to "make known his power" without having to make nonbelievers, then he shouldn't have made anyone. How would you like it if the only reason God brought you into existence was to suffer in eternal torment so the elect could somehow appreciate God better? This breaks the golden rule. Nobody would want to not be elect and suffer in torment. Everybody would want to be elect.

God is Holy and just. He would be completely just if he sent all people to hell because all have sinned and are born in sin.

Firstly, people can't help if they're born in sin since the sin nature is inherited. And he wouldn't be just if he sent everyone to hell if he could either (1) make everyone elect or (2) not make those who wouldn't believe, or (3) not make anyone. I'd prefer the 3rd option if Christianity were true.

Why does he leave a lot for hell? To display his justice and holiness. To make mercy more wonderful or the elect and display his glory

Can't you see how sick and disgusting that is?