You are a good person if you follow the moral code that your society accepts.
You don't need a Bronze Age boogeyman.
Let's see so according to your logic:
The Soviet Gestapo who forceably resettled presents to collective farms in 1932 leading to the starvation of 8 million were swell folks because they were following the Soviet code.
The Nazi's guards who starved and gassed millions were great guys too because Hitler was elected and widely admired and supported by the German People.
According to you these folks were paragons of virtue following the moral code their societies accepted at the time.
Similarly if you can get a majority to support your desired re-education camps and book burnings that will be great too. I think I understand you better now.
Here is a short video that describes your fundamental problem. You have rejected God, and without God one can no longer properly define good and evil.
Can You Be Good Without Godhttps://www.youtube.com/watch?v=OxiAikEk2vU