So much apology. You don't need to convince me that the Holocaust was industrialized to a greater extent than most genocides, and will find no argument from me there. The circumstances of each genocide or mass killing are bound to be different. But I don't believe for a second that the Holocaust was the only example of a "professional, efficient, and effective" genocide in late modern history. For one, your counterexamples are misleading. Chalking the Holodomor up to incompetence lets Stalin off far too easily. And what about the American (and to a lesser extent Canadian) hiring of thugs to scalp indigenous people? The Canadian (and to a lesser extent American) rounding up of (remaining) indigenous people into schools, numbered, deloused and ready to be assimilated, provided they didn't first succumb to the TB, malnutrition, and wonton sex abuse in those institutions? Was that not "professional, efficient, and effective" enough for you? In fact, the current Israeli genocide is quite possibly more "professional, efficient, and effective" than the Holocaust itself. The imperial boomerang in full effect, testing new chemical, military, and surveillance tecnologies on a wholly impoverished and defeated underclass. Tens of thousands dead in less than two years, over half women and children. Cope harder.