Why were there negative consequences for becoming “like God” when God had already made mankind in the image of himself?

I am of the Protestant church and seeking some understanding of a concept from the book of Genesis. I will try to summarize this as succinctly as I can.

Genesis 1:27, states that God created mankind in His own image:

So God created mankind in his own image,
in the image of God he created them;
male and female he created them.

Though mankind had already been made in the image of God, Genesis 3:22 states that mankind became “like God” after gaining an understanding of good and evil. Becoming like God in this way caused negative consequences to Adam and Eve and they are no longer allowed to live forever.

Genesis 3:22

And the Lord God said, “The man has now become like one of us, knowing good and evil. He must not be allowed to reach out his hand and take also from the tree of life and eat, and live forever.”

I had a lighthearted chuckle considering that it appeared contradictory to be made in the “image of God”, but reprimanded for becoming “like God”. (I very much enjoy the deeper thinking that biblical scripture provokes.)

My specific questions regarding this are:

1. Why were there negative consequences for “becoming like God” when God had already made mankind in the image of himself? (Ironic?)
2. If mankind was already made in the image of God, how could mankind become like God? (Redundant?)

I do hope that I have phrased these appropriately for this platform.