Despite the centrality of the idea of "breeds" to animal husbandry and agriculture, no single, scientifically accepted definition of the term exists.[3]: 340 A breed is therefore not an objective or biologically verifiable classification but is instead a term of art amongst groups of breeders who share a consensus around what qualities make some members of a given species members of a nameable subset.
Still waiting for that scientific definition of breed. That link doesn't have it and the thing you've told me to read more than once literally says it is a term of art, not scientific.
They track heritable disease frequency by race, which obviously exists scientifically being that. you act like 23 and me doesn't exist. "race doesn't exist" vs "DNA says this was a (whatver race)"