Nakosis good to meet you..
God does NOT make mistakes... God is perfect if he made mistakes, he would NOT be God!
The flood removed men who rejected God!
Of course the flood and all of Genesis is a re-working of the Mesopotamian creation story, but still, in the story God did not kill just men who rejected him. He killed women who were raising babies, old folks just trying to farm and all sorts of murder.
It comes down to "Free Will"!
?! NO!
God could make us love but then our love would NOT be true love! God made man in his image "God is Love". Man can love or with "Free Will" man can chose NOT to love!!
It is a CHOICE! Adam the first PERFECT man made a free will choice... He chose NOT to love, not loving God he disobeyed God! Adam brought corruption and sin into God' PERFECT creation by his free will! God does all things perfectly... He created Adam perfect, if he did not create Adam perfect, he would not be God! The Perfect man chose not to love! Dogs, pigs, chickens' snails, ants etc. cannot love they do not have free will! ONLY.....
Uh, that isn't related to "not loving" ever in any way. If you disobey a loved one that isn't "not loving them". Eating a fruit is not "not loving". This too is an older myth from several older sources. If this God is so perfect why so many mistakes in the same book about Adam?
Is Moses’s father-in-law named Reuel (Exod 2:18) or Jethro (Exod 3:1)? Is the mountain in the wilderness where Yahweh appeared to the people called Sinai (Exod 19:11) or Horeb (Exod 3:1; Deut 1:6)? Of somewhat more significance are disagreements about where, when, and even why an event took place. In Numbers 20:23–29, Aaron dies on Mount Hor; according to Deuteronomy 10:6, however, he dies in Moserah. In Numbers 3–4, after Moses has descended from the mountain and is receiving the laws, the Levites are assigned their cultic re- sponsibilities; but according to Deuteronomy 10:8, the Levites were set apart at a site in the wilderness called Jotbath.10 In Numbers 20:2–13, Moses is forbidden from crossing the Jordan because of his actions at the waters of Meribah, when
he brought forth water from the rock; but then according to his own words in Deuteronomy 1:37–38, Moses was prohibited from entering the promised land not because of anything he did, but because of the sins of the people in the episode of the spies. Major contradictions, with important historiographical and theological ramifications, are also present in the text. The premier example of these is the creation story in Genesis 1 and 2: in what order was the world created? was it originally watery or dry? were male and female created together, or was woman made from man’s rib? is man the culmination of creation, or the beginning? Other examples are equally problematic. For the cult: was the Tent of Meeting in the center of the Israelite camp (Num 2–3) and did Yahweh dwell there constantly (Exod 40:34–38), or was it situated well outside the camp (Exod 33:7), and does Yahweh descend to it only to speak with Moses (Exod 33:8–11)? For prophecy: could there be other prophets like Moses after his death (Deut 18:15), or not (Deut 34:10–12)? These contradictions, from minor to major, are difficult, and frequently impossible, to reconcile.
NARRATIVE PROBLEMS
During the Reformation, when the challenging of authoritative claims, religious and otherwise, was the order of the day, scholars began to insist on a close reading of the pentateuchal narrative on its own terms, as a history of Israel from the creation of the world until the death of Moses. Under these circumstances, it was not long before the literary problems of the text became undeniable.9 The hallmark of a unified composition, one created by a single author, is internal consistency: consistency of language and style, consistency of theme and thought, and, above all, consistency of story. Every narrative makes certain claims about the way events transpired—who, what, when, where, how, and why. When these elements are uniform throughout a text, there is no pressing need to inquire as to its unity. In the Pentateuch, however, historical claims made in one passage are undermined or contradicted outright in another. The problems identified by the Reformation scholars are the same as those we struggle with today and can be classified in three major overlapping groups: contra- dictions, doublets, and discontinuities.
Contradictions in the pentateuchal narrative come in a variety of forms, from the smallest of details to the most important of historical claims. On the minor end are ostensibly simple disagreements about the names of people and places.
One can miss the story-line... like a "who done it" mystery that you think one thing but the end isn't what you would thought it be. 
