But, there is another important thing that should be pointed out about Genesis chapter 9 in this context.
Not only is the rainbow the sign of God’s promise not to judge the entire earth again with a flood, it is connected with the imperative command that God gave to mankind to defend innocent human life and to multiply in the earth.
Whether you’re talking about abortion or homosexuality, especially the open “proud” kind, you’re talking about people who have become so calloused as to flaunt their rebellion openly in the face of God and the world, and to violently reject the LORD’S best gifts.
5 Surely for your lifeblood I will demand a reckoning; from the hand of every beast I will require it, and from the hand of man. From the hand of every mans brother I will require the life of man.
6 Whoever sheds mans blood,
By man his blood shall be shed;
For in the image of God
He made man.
7 And as for you, be fruitful and multiply;
Bring forth abundantly in the earth
And multiply in it.
8 Then God spoke to Noah and to his sons with him, saying: 9 And as for Me, behold, I establish My covenant with you and with your descendants[b] after you, 10 and with every living creature that is with you: the birds, the cattle, and every beast of the earth with you, of all that go out of the ark, every beast of the earth. 11 Thus I establish My covenant with you: Never again shall all flesh be cut off by the waters of the flood; never again shall there be a flood to destroy the earth.
12 And God said: This is the sign of the covenant which I make between Me and you, and every living creature that is with you, for perpetual generations: 13 I set My rainbow in the cloud, and it shall be for the sign of the covenant between Me and the earth. 14 It shall be, when I bring a cloud over the earth, that the rainbow shall be seen in the cloud; 15 and I will remember My covenant which is between Me and you and every living creature of all flesh; the waters shall never again become a flood to destroy all flesh. 16 The rainbow shall be in the cloud, and I will look on it to remember the everlasting covenant between God and every living creature of all flesh that is on the earth. 17 And God said to Noah, This is the sign of the covenant which I have established between Me and all flesh that is on the earth.
You're right. For thousands of years, mankind has thought it can "get away" with defying God.
The rise of homosexuality is a definite sign of the wickedness of a culture and a people.