I hear this a lot too and I think again, the analogy to religion is good. It's very much like when people countering concerns abt killing apostates by returning to the words of the prophet Muhammad & making sophisticated arguments abt how Islam does not advocate this.
That's all very well & good and again, interesting on an academic and historical level but meanwhile apostates are still being killed in the name of Islam so some tracing back of cultural phenomena to intellectual sources is warranted.