I heartily agree with everything you said, except the Noah flood. Nowhere did God say he destroyed the first order because of anger. He gave his reason as his grief.Prophecy can be seen to have multiple fulfillments. The best example of this is prophecy concerning the coming of Messiah. The coming of Messiah has been fulfilled, but not in full. An example would be found here:
Luke 4:17-20
King James Version
17 And there was delivered unto him the book of the prophet Esaias. And when he had opened the book, he found the place where it was written,
18 The Spirit of the Lord is upon me, because he hath anointed me to preach the gospel to the poor; he hath sent me to heal the brokenhearted, to preach deliverance to the captives, and recovering of sight to the blind, to set at liberty them that are bruised,
19 To preach the acceptable year of the Lord.
20 And he closed the book, and he gave it again to the minister, and sat down. And the eyes of all them that were in the synagogue were fastened on him.
21 And he began to say unto them, This day is this scripture fulfilled in your ears.
So, Scripture concerning His coming has been fulfilled, but not all.
Isaiah 61
King James Version
1 The Spirit of the Lord God is upon me; because the Lord hath anointed me to preach good tidings unto the meek; he hath sent me to bind up the brokenhearted, to proclaim liberty to the captives, and the opening of the prison to them that are bound;
2 To proclaim the acceptable year of the Lord, and the day of vengeance of our God; to comfort all that mourn;
3 To appoint unto them that mourn in Zion, to give unto them beauty for ashes, the oil of joy for mourning, the garment of praise for the spirit of heaviness; that they might be called trees of righteousness, the planting of the Lord, that he might be glorified.
4 And they shall build the old wastes, they shall raise up the former desolations, and they shall repair the waste cities, the desolations of many generations.
So, prophecy surrounding His coming has two fulfillments. I would suggest that many times in history God has presented His fierce anger, beginning with the Flood.
God bless.
Gen 6:5 And God saw that the wickedness of man was great in the earth, and that every imagination of the thoughts of his heart was only evil continually.
6 And it repented the Lord that he had made man on the earth, and it grieved him at his heart.
7 And the Lord said, I will destroy man whom I have created from the face of the earth; both man, and beast, and the creeping thing, and the fowls of the air; for it repenteth me that I have made them.
11 The earth also was corrupt before God, and the earth was filled with violence.
12 And God looked upon the earth, and, behold, it was corrupt; for all flesh had corrupted his way upon the earth.
13 And God said unto Noah, The end of all flesh is come before me; for the earth is filled with violence through them; and, behold, I will destroy them with the earth.
This society lived only under a consciousness of good and evil and had not experienced the attributes of God. They did not disobey the Law of God because they did not have the law from God. Rom 5 tells us this; "12 Wherefore, as by one man sin entered into the world, and death by sin; and so death passed upon all men, for that all have sinned: 13 (For until the law sin was in the world: but sin is not imputed when there is no law.14 Nevertheless death reigned from Adam to Moses, even over them that had not sinned after the similitude of Adam's transgression, who is the figure of him that was to come.
This is easily illustrated by a comparison of these two men at different epochs in human history by the same God.
Num 15:31 Because he hath despised the word of the Lord, and hath broken his commandment, that soul shall utterly be cut off; his iniquity shall be upon him. 32 And while the children of Israel were in the wilderness, they found a man that gathered sticks upon the sabbath day. 33 And they that found him gathering sticks brought him unto Moses and Aaron, and unto all the congregation. 34 And they put him in ward, because it was not declared what should be done to him. 35 And the Lord said unto Moses, The man shall be surely put to death: all the congregation shall stone him with stones without the camp. 36 And all the congregation brought him without the camp, and stoned him with stones, and he died; as the Lord commanded Moses.
Gen 4:8 And Cain talked with Abel his brother: and it came to pass, when they were in the field, that Cain rose up against Abel his brother, and slew him. 9 And the Lord said unto Cain, Where is Abel thy brother? And he said, I know not: Am I my brother's keeper? 10 And he said, What hast thou done? the voice of thy brother's blood crieth unto me from the ground. 11 And now art thou cursed from the earth, which hath opened her mouth to receive thy brother's blood from thy hand; 12 When thou tillest the ground, it shall not henceforth yield unto thee her strength; a fugitive and a vagabond shalt thou be in the earth. 13 And Cain said unto the Lord, My punishment is greater than I can bear.14 Behold, thou hast driven me out this day from the face of the earth; and from thy face shall I be hid; and I shall be a fugitive and a vagabond in the earth; and it shall come to pass, that every one that findeth me shall slay me. 15 And the Lord said unto him, Therefore whosoever slayeth Cain, vengeance shall be taken on him sevenfold. And the Lord set a mark upon Cain, lest any finding him should kill him.
This teaches us that men are responsible to God according to what he has revealed to them.
29 Forasmuch then as we are the offspring of God, we ought not to think that the Godhead is like unto gold, or silver, or stone, graven by art and man's device. 30 And the times of this ignorance God winked at; but NOW commandeth all men every where to repent:
Rom 4:22 And therefore it (his faith in what God said)) was imputed to him for righteousness. 23 Now it was not written for his sake alone, that it was imputed to him; 24 But for us (after the law as the operative principle of divine dealing) also, to whom it shall be imputed, if we believe on him (God the judge of all the earth) that raised up Jesus our Lord from the dead; 25 Who was delivered for our offences, and was raised again for our justification.
The point is the righteousness that God demands is given to those before the law, Abraham, during the Law, David, After the Law, us, who simply believes God. See the highlighted section above.
I am concerned that many of the Christian faith will not accept the "IF."