I know it's pointless to attempt debating with every evolutionist on utube but here's some questions I thought I'd address, just for the fun of it;
Anonymous Evolutionist: Questions: If God did exist, why wouldn't He answer every believer's prayers? If God did exist, why not just come out and show everyone? If God did exist, why would He create a world where humans are the center and then add an infinite amount of space, stars, planets, black holes, meteorites, dark matter, etc. that we humans could never see? Why the excessive waste of space? If God did exist, why would He create conditions for animals in which newborns are often eaten alive? If God did exist why would He create commandments like Thou Shall not kill then advocate for child sacrifice (Isaiah comes to mind) or mass murder (nonbelievers in Chronicles? Christians' Answer: God works in mysterious ways!
Evo: If God did exist, why wouldn't He answer every believer's prayers?
Of course this begs the question, what is the believer's experience with prayer? The questioner himself has no experience which biases his judgement and makes it not count. It's like asking, "all you chocolate lovers, I have never tasted chocolate, but why aren't you having an orgasm every time you eat it if it's that good?"
The conclusion is obvious when you know logic; to answer every believers prayer would lead to immense chaos. Imagine if one believer asked Christ to return tomorrow and He did, and this spoilt God's plans for the gospel, for example. So to answer every prayer presumably with a, "yes", for every believer, would lead to such a mess that it would demonstrate why God is God, and not human reason. Under human atheist reason, God apparently should answer every prayer with a yes, which could potentially destroy the world. That's the difference between omniscient God-reasons and puny human reason.
Evo: If God did exist, why not just come out and show everyone?
As Christians we offer answers of apologetics for Christianity, not general theism. We believe the Lord is God. With that in mind, the Christian bible says, "for we live by faith not by sight." There are many scriptures that refer to this, why not try opening the bible which answers many of your questions? For example Jesus said to Thomas when he saw Jesus's nail imprints, "you have believed because you have seen, blessed are those who believe though they have not seen". (paraphrase)/
Evo: If God did exist, why would He create a world where humans are the center and then add an infinite amount of space, stars, planets, black holes, meteorites, dark matter, etc. that we humans could never see? Why the excessive waste of space?
Of course part of the premise, "God exists" is the hidden assumption that God has omniscience. Or it should be if you're talking to Christians because God is defined as all-knowing.
Given that assumption all questions which ask the human to have omniscient answers, when humans have finite minds, is basically a breaking of the law of non-contradiction. For how can I give omniscient reasons for why God does things, if I don't have omniscience?
So to presume humans have answers to all such questions, is erroneous thinking. As for humans being the "center", it depends on perspective. From an atheists subjective perspective, it is a, "waste of space" but from a Christian's perspective the vastness of the universe gives glory to God.
Evo: If God did exist, why would He create conditions for animals in which newborns are often eaten alive?
He didn't. The error is the assumption that God created those conditions. In case you have trouble understanding Genesis, it says none of the animals were carnivores when God created the "very good" conditions at the beginning of creation. The fall then led to conditions where carnivorous activity was now possible.
Evo: If God did exist why would He create commandments like Thou Shall not kill then advocate for child sacrifice (Isaiah comes to mind) or mass murder (nonbelievers in Chronicles? Christians' Answer: God works in mysterious ways!
God can kill at all times because He is the Creator of life. The unspoken assumption in your argument is that God is accountable like a human being, which is intellectually absurd. God actually said, "do not murder", but killing for reasons of justice, by God, is not murder.
Example; Ted Bundy kills someone using an electric chair for fun.
An executioner kills Ted Bundy for his crimes of murder.
Do both examples logically count as murder? No, execution for judicial reasons is not murder.
Another hidden assumption with this atheist argument is that it presumes the atheist has telepathy, and knows the reasons why God does things, so it seems we have to take it by faith that the atheist knows God's motives.
Oh yes - you can completely trust atheists when they tell you God's motives, they would never have an agenda against God or argue against God would they? I suppose we can also trust the atheist when he quote-mines the bible and gives us his take on what God's motives were? Like when they say the bible says bats are birds? (Lol)
(yes this last part is sarcasm, I am making fun of the common tactics atheist use, of hunting through the bible to look for errors without realising that most of the time there are perfectly good answers to their complaints they aren't aware of, such as the fact that there was no scientific taxanomical classification in Hebrew and an "owph" (bird) was just defined as something that could fly.)
Advice to atheists of utube level; Actually learn, and seek to find answers to these questions and then you won't look silly when you come up against someone who can answer them EASILY.