What a complete twit!
His answer is to make domestic animals extinct, by forced sterility no less.
Some professors are a bit dim imo.
Too many books, and no common sense.
People need to feel connected to nature, pets fulfill that. When a pet is a well loved part of your pack, both of you benefit.
Pets can be good for your blood pressure, more than troublemaking professors who condemn others while being a hypocrite.
No one forces anyone to have a pet.