"We can judge the heart of a man by his treatment of animals."
Immanuel Kant
Evidently, Kant's analysis does not apply to women. I cannot find any appropriate words to describe what Ingrid Newkirk had to say in her interview with The New Yorker.
I heard a pound contractor in North Vancouver say that he had "killed 50,000 dogs in his lifetime" and follow that with the question, "Do you think I like it?"
I am at liberty to say that Ms. Newkirk and the aforementioned male evidently are functioning with the same morality as Heinrich Himmler, Rudolph Hess and Joseph Mengele, etcetera, etcetera.
A corollary to what Kant had to say is that anyone (and here I refer, the same as Kant, to humans) who would murder kindly (if there ever were an oxymoron, this is it) simply murders for convenience. There can be no justifiable reason for murder. How an individual would treat one species can be extrapolated to a treatment of any other species.
There are 340 million members of another species in The United States, many of whom are unwanted and suffering. Take note, Ms. Newkirk!