> A civilization or civilisation is any complex society characterized by urban development, social stratification imposed by a cultural elite, symbolic systems of communication, and a perceived separation from and domination over the natural environment.
I tend to agree with this definition and as you can see, there is no asterisk (*) regarding ```Slavery, oppression by any means (taxation or force), fights to the death as entertainment, hideous punishments, genocide, immense inequity, tyrants killing at whim, women usually treated like crap, forced prostitution, rape with little or no recourse for the victim, minimal to no education for most```.
Now, going back to the poster's argument, it is possible that an artificial intelligence will start developing society in its own understanding of it and it might emulate some aspects of early civilizations (yes, even the ones containing rape, minimal education, genocide, immense inequity), and perhaps it is important to study those in order to understand a possible new one.
So try to retaliate his argument with another one in the context set by him rather than trying to hammer in your civilization not compatible with things you don't like world view...
I take 'humanity' here to mean not doing the evils I was talking about - but which ancient cultures did in fact do in horrible abundance.