Yes. Slavery, torture, and endless warfare were the norm. And, of course, the Leftist delusions have nothing to do with truth and reality.
Actually, the "deluded" leftists *do* want to bring back those days. They hate civilized society. It may be that the rank-and-file leftists really believe in the unicorn and skittles view of primitive societies that their leaders constantly talk about, but the leaders know the truth. They support brutal societies because they desperately want to be the ones in power, to do with other people anything they desire.