Breeds are defined by organizations that determine breed based on lineage, followed by conformation. They do not align across different countries. Dogs have the AKC, CKC in America. They don’t follow the same definitions. It also causes lots of issues to classify things like this and leads to bad decision making by lots of people. Even as it is now, there’s no clear definition for things like Pit Bulls. There’s also a ton of health issues that arise from defining breeds and trying to follow this logic.
Humans are not controlled and bred based on these things so a Breed Standard would not be possible. There is simply a continuous line of people.
Perform a cluster analysis on dogs - they will kind of fall into clusters because we bred selectively for them. But humans, which have not been selectively bred even in smaller geographic regions, would not provide decent clustering results based on race categories.
Without good clustering, whatever groups you make have more inaccuracies than accuracies in your grouped statements. (Border collies are high energy, greyhounds are lazy > 65% true at best) this is because of the insane complexity of DNA and the lack of selective breeding artificially limiting the DNA diversity. Plus other stuff.
You can say anything. You cannot create logic from nothing. He has a point - a purpose. He is saying cancer cannot be tolerated in a system because it kills the system. You’re saying random people can be killed in a system because… they can be killed? His has purpose of defending life, yours has no purpose.