So God created mankind in his own image,
in the image of God he created them;
male and female he created them.
Genesis 1:27
ADAM was created in the likeness of God (1:26-28); men are BEGOTTEN in Adam's likeness (5:3). GOd's likeness was perfect; Adam's was imperfect and depraved with the law of sin and death working in and bringing it to ruin (Job 14:4; 25:4; Ps. 14:3; Rom. 5:12-21; 1 Cor. 15:39; Eph. 2:2-3).
If every man is created in the image of God, then every man would be created PERFECT. And we would not be the sons of Adam, original sin would not be ours, and we would have no need of the 2nd Adam, Jesus Christ.