So much of that is misplaced anthropomorphism though. Throughout history hundreds of millions of people have wrung the neck of a chicken or dropped a lobster into boiling water. Almost none of them have cried.
TV melodrama is a weird way to decide which actions have moral weight. We're particularly sensitive to the deaths of mammals because we see human qualities in their suffering.
All true, but shock value anti-carnism of course plays on anthropomorphism, which is heavily baked into our culture with kids TV overwhelmingly featuring anthropomorphised animal characters and pet ownership being widespread.
I mean it's fine to point out that apparent hypocrisy, as the billboard campaign (where do you draw the line) in my country recently did. But it's not particularly persuasive from a logical perspective, just a useful cultural lever.