What If: god: believe in me OR DIE ! !
the great many: okay, we believe, we have faith, we KNOW that you are the lord god.
god: not good enough, so i'll just wipe you all out with 40 days of rain, let's see if that corrects my mistake i made earlier.
I think it's either been fifty years since you read what preceded the flood, or you have never read Genesis, and were merely told by anti-atheists what it says. Here is what it actually says before God floods the planet;
The Lord saw how great the wickedness of the human race had become on the earth, and that every inclination of the thoughts of the human heart was only evil all the time. 6 The Lord regretted that he had made human beings on the earth, and his heart was deeply troubled. 7 So the Lord said, “I will wipe from the face of the earth the human race I have created—and with them the animals, the birds and the creatures that move along the ground—for I regret that I have made them.” 8 But Noah found favor in the eyes of the Lord.
(of course the Lord doesn't have a literal heart or eyes, He is a spirit, but remember the bible employs deliberate anthropomorphism, because it is all people understood. They had no other words, so they used words used for a man, emotions and human parts, it is a shame in modernity, that people think the bible was simplistic and dated because scripture does tell us that God is not a man. The bible was written in rudimentary times, but that was okay, God isn't fussy about using unsophisticated people.)
Don't forget, "What If", that what Blitzking said about choosing God, also goes for choosing to trust God in His decisions. While you aren't an atheist you obviously are atheist to Christianity. According to the bible there are those who know the Lord, and those who don't, and all those who don't, by freewill choose to believe that human reason knows better than God.
In other words it is very predictable when you offer complaints against the Lord that very much fall in line with all of the other complaints from atheists. Those charges against God are folly, but you choose to believe you know better than the God Who made everything. That is ultimately a choice - a choice to believe that human reason is god.
I am pretty much an expert in reason, but I can tell you that human reason usually is best described as reasoning which makes sense to the human, limited mind. Another terminology for the type of reason which is human reason, is sophistry.
wiki and google: A sophism is a specious argument for displaying ingenuity in reasoning or for deceiving someone. A sophist is a person who reasons with clever but fallacious and deceptive arguments.........................the use of clever but false arguments, especially with the intention of deceiving...............a fallacious argumen
Sometimes it is also known as argumentation which seems to make sense, subjectively. So sophistry might be to jump to conclusions, or to paint God in a deceptive light, by abusing what the bible says BECAUSE it omits so many of God's reasons for what He does.