You need to support what you say by quoting the parts that suggest conscience.
I thought you would have an idea because of the so many things you claim to know about God.
If I were to quote passages suggesting conscience it would be practically the whole bible.
26 Then God said, “Let us make mankind in our image, in our likeness, so that they may rule over the fish in the sea and the birds in the sky, over the livestock and all the wild animals,[a] and over all the creatures that move along the ground.”
27 So God created mankind in his own image,
in the image of God he created them;
male and female he created them.
15 The Lord God took the man and put him in the Garden of Eden to work it and take care of it. 16 And the Lord God commanded the man, “You are free to eat from any tree in the garden; 17 but you must not eat from the tree of the knowledge of good and evil, for when you eat from it you will certainly die.”
2 The woman said to the serpent, “We may eat fruit from the trees in the garden, 3 but God did say, ‘You must not eat fruit from the tree that is in the middle of the garden, and you must not touch it, or you will die.’”
7 Then the eyes of both of them were opened, and they realized they were naked; so they sewed fig leaves together and made coverings for themselves.
8 Then the man and his wife heard the sound of the Lord God as he was walking in the garden in the cool of the day, and they hid from the Lord God among the trees of the garden. 9 But the Lord God called to the man, “Where are you?”
10 He answered, “I heard you in the garden, and I was afraid because I was naked; so I hid.”
I'm not going to quote the whole story. If you have no experience with conscience then it would be pointless.
It may be that there are other interpretations.
Yes there obviously are. There is yours. I saw your interpretation on the narrow gate and what it essentially is.
The story tells us nothing about why people became inclined toward evil.
Are you sure?
I could quote passages that suggest there is but you will tell us it is a mixture of theology and because of that it somehow doesn't count despite being written in the story. I'll do the hokey pokey but I'm not going to turn around on that again.
Did God create them with a propensity toward evil, perhaps due to a lack of conscience?
I am incapable of knowing that. Do you have evidence that he absolutely did
Why do people turn to evil? Are we that different? Were the conditions in which they lived conducive toward evil? Is God incapable of guidance? Perhaps does not care enough to intervene?
I don't know. In the realms of absolute eternity, you could go off on any degree on a tangent and end way off course away from the narrow gate that leads to life.
If Christ is essentially the narrow gate, as you claim, then that would entail the truth as well as written.
Only complains when things go wrong, blaming His creatures, sending them to hell or 'imprisonment' for being what they were created to be: fallible. Finally intervening by drowning the whole world because He is dissatisfied?
Going from beginning to end of the story I can't answer yes to any of those questions.
Do you answer yes to any or all of them?