Let's be totally fair. The above rant is almost entirely based on lack of knowledge. It's like judging religion(s) based on popular notions about them as opposed to any sort of investigation.

That out of the way, a cursory search of the word "knowledge" in the New King James translation of the Bible yields 165 results. A good start to getting an actual idea of what's the Bible's stance on the topic of knowledge might be something a person who expresses interest in this topic would want to do.

https://www.biblegateway.com/quicksearch/?quicksearch=knowledge&version=NKJV

Now let's get into the weeds on the actual doctrine regarding Adam and Eve.

They were the first humans. They were created without sin. They also lacked wisdom and experience, which is fine. They were naïve. They communed with God on a regular basis. You will find their story in the early part of the book of Genesis in case you want to follow along. But Adam and Eve's sinlessness was not due to any sort of virtue on their part. It was really simple innocence. You with me? We adults probably don't even remember what that's like. But anyway, the problem with innocence is that once it's gone, it's gone for good. You can only be innocent once.

You will see in the story of their fall that the tree with the forbidden fruit was explicitly named "the tree of the knowledge of good and evil." Does this mean it's bad to have knowledge? No; what it means is that it's impossible to both have knowledge of good and evil AND be innocent at the same time. Once they lost that innocence, they also lost their sinlessness and therefore their communion with God.

So what is the first thing God did for them after they hid from Him in the garden and blamed each other and applied fig leaves to cover their nakedness?

He clothed them in animal skins. Genesis 3:21

There is a principle in Bible study and interpretation that says that the first mention of something is important. This is the first mention of an animal being slain. This is a picture of a blood sacrifice to cover sins.

And so throughout the rest of the Old Testament this topic resurfaces. Abraham and Isaac and the ram that God provided for the sacrifice. The Israelites performing the first Passover ceremony where they must sacrifice a perfect lamb without spot or blemish and apply its blood to the lintel and doorposts of their homes so the destroying angel would spare their first born son. Notice what sign the blood on the lintel and doorposts makes? The sign of the cross.

So onward to Jesus. The previous stories and pictures were preludes and symbols of the real sacrifice. God Himself took on the form of a man, being born of a woman, being tempted in every way that we are, yet without sin, and offered Himself as the atoning sacrifice, the propitiation for all the sins of mankind. Having risen from the dead 3 days later and then appearing to His disciples in many ways and on many occasions, He was then seen to ascend into heaven after giving his disciples instructions to wait on the promise of the Father. After a week or two of waiting (I forget exactly how long), they all received the outpouring of the Holy Spirit. (Acts chapter 2)

So now we have both knowledge and holiness by grace through faith. And we have authority over all things evil. We walk in the light.