Seventh: Cultures can attain a level of sinfulness that requires God to judge them so severely that they are wiped out.
God does not want his children born into the homes of the wicked.
Well, God said leave none of them alive and don’t take any of their stuff. He didn’t want the Jews falling in love with them and intermarrying. Of course, they didn’t obey and intermarried and pretty soon were building pagan idols.
The mistake I made, and I think a lot of people make, is that we can think of God as an infinitely bigger one of us. God is categorically different from us, since He is the Author of Creation and every life. God gives life and He can take it away. We don't have the same rights that he does.