The message
from "Dr. Rev. Chuck, M.D. P.A." contains
these words:

R. Cohen wrote:

Purebreds are born with birth defects, become indiscrimently
aggresive, develop nervous tendencies that result in them becoming
incontinent and become dumber with each generation. I know it's hard
to deal with but that's how it goes.

Case in point: Bonnie Prince Jughead, heir to the British throne.

Unfortunately he demonstrates the exact opposite of the premise.
Whatever else one might think of them, he and his family are
super-healthy physical specimens, fertile, and live active and strong to
a very great age.

;-}

Janet.