Didn't you get the memo? Many men have decided that God doesn't exist. Many that believe God does exist think that they know better than God. No surprise.
Luk 17:26 "And just as it happened in the days of Noah, so it will be also in the days of the Son of Man:
Luk 17:27 they were eating, they were drinking, they were marrying, they were being given in marriage, until the day that Noah entered the ark, and the flood came and destroyed them all.