That's literally racism toward animals.

Allow me to illustrate the fallacy: A pen and a pencil are both writing instruments. This is like you saying a pencil is intrinsically and fundamentally different from a pen, and them saying no it's not, it's a fucking writing instrument. Leave alone the fact of pencil lead vs ink, the different mechanics, the more permanent and permeating nature of ink, etc. He's saying a pen is literally identical to a pencil in every relevant way imaginable.