I'm currently reading an interesting book about the Holocaust. It seems that the holocaust, at least, the various ways it has been conceptualized and rationalized in the sociological and collective behavioral sense; be it from an ethnographic perspective, or near-in scope of Hitler's psychological authoritative capable reach, was all wrong, albeit at best, partly, yet not effective, explanatory historical viewpoint.
To put it bluntly, those concentration extermination camps were caused by factors of "modernity". It didn't derive from an accumulation of millennia-old Jew hatred or specific hate for Jews or anything like that (although Jews were seen as in the way of their utopian dream, so they had to be gotten rid of—there is a stark difference in nuance that carries the right explanatory power from a broad based perspective that the conventional story gives a weak model for). This rhetoric is a heinous opportunistic post-occurrence instrumentalization of wrong historical framing by Jews and the Western world for various reasons and motives.
It came from the bureaucratic, scientific, social-engineering, and technological systematization of society, which placed the human within that context, not outside it as something special. In fact, that's why all that infrastructure was as if they were moving stuff logistically, through an optimized efficient factory. Placing animals, minerals, or whatever goods in those systems, would suddenly look like the best technology and be of good use for humanity, using the same pervasive calculative principles. But what came with that stuff, was a materialistic reductionist view of the human condition of a great cynical filter, where the human status devalued. That's why processing people to be killed was actually just a natural part of that society that placed "things" and the study of it above humans, even putting humans as just among the things. To even go further with the insight, making the human working the system, just a function of the system too, the person primed to think and act machine-like for professionalism, productivity, and the like.
Ironically, what Kanye is saying is true, even further, the pinnacle of Germany's technological reach and bureaucratic functionality of that time was the holocaust. It sounds fucked up, but it is true. The systems, technology, philosophy, and culture, all part of the wrong linear view of history but classified as the "advanced" extensive conglomerate 'modernity', made the Nazi shit possible. It was not a special kind of hatred or a system that came out of nowhere, unique for the Jews, or other types of rationalization. That's completely wrong. A similar type of beast, namely European colonialism, was part of that Western modernity aspect, and you can draw good valuable parallels. It derives from the same Western tradition.