I have read the Bible cover to cover.
Very good.
You did more than lots of people have.
Just a side question, for my own information. How do you view the Bible, though?
It describes many people God created who were mass murderers.
Have YOU read the Bible (not just the bits you like)?

Yes, I read the Bible... not to boast, but more that one score, and one.
In the Bible, I read that God created two people - Adam, and Eve, and he put them in a garden to populate the earth. You did read that as well, I am sure. Genesis 1:26-28
So, when Adam and Eve did what God told them to do - namely "multiply and fill the earth", everything passing through the womb of Eve, is seed, or offspring of Adam, and Eve.
Because Adam and Eve disobeyed, however, the one command that would have allowed them to produce perfect offspring as they were, when God created them, they produced - not children of God... Not a creation of God... but degenerate, sinful. alien to God, children.
You may have read these scriptures, but since the Bible is no little book, you may not remember them, or... and this is very common among many people, you may not have connected them.
Following, are the scriptures...
Deuteronomy 32:5; Ecclesiastes 4:17, 18 Colossians 1:21, 22;
This is where the sacrifice of Jesus - a most important provision by God - comes in.
Jesus' death reconciles mankind to God - that is, obedient mankind. In other words, Jesus death allows for illegitimate children not belonging to God, to become children of God, and... a creation by God. John 1:12, 13; 2 Corinthians 5:17; 1 Peter 1:23; 1 John 3:1-3
Only those accepting Jesus sacrifice become God's children. The rest remain degenerate sinful alien to God children - not his creation - Hebrews 12:8.
Since you read the Bible from cover to cover... how many times, if I may ask? Then the answer to this question should be easy... Whose children were Adam and Eve's, if not God's? 1 John 3:9, 10; 1 John 5:18-21
Hence, the son born to us is the everlasting father, having produced children, so to speak. Isaiah 9:6
Wait a minute, though...
I addressed here, the fact that God did not create many people who were mass murderers, but I think you may have lost focus, and went a bit off course, since the issue was not whether or not someone God created was a mass murderer, but rather, your complaint was...
Yeah but that is a not analogous creating a being thatyou know full wellwill do a million murders because you created him that way. It is the creator that is at fault.
The Bible does not say that God knew full well that Adam would sin.
That is the part I am highlighting.
Therefore, to blame God, for Adam's misuse of free will, is without merit. It is a false accusation.
So, I'm saying to you, you need to get the facts straight, before running with something you have been told, and have not read in the scriptures.
Since you have read the Bible from cover to cover, then you should know that there is no scripture that says God knew Adam would sin.
If you read differently, I would like you to show me the scripture., please.
Let it be clear too, that nowhere does the scriptures support the view that God created many people that committed mass murder.
Adam is the only creation by God, that by his disobedience - his misuse of free will, plunged the entire human race -all his offspring - into sin, which leads to death.
None of us were God's children. God is perfect, and does not create imperfect things.
Can you imagine God creating someone with a defect... which doctors will then have to work hard to correct, because it's "not normal"... they would tell you?
Can you imagine God creating you with a tumor in your brain, or a hole in your heart... or sickle cell anemia?
No. These are defects, which are a result of sin. passed on by Adam, to all his offspring.
Not a creation of God. Please carefully consider the scriptures above.