I also think that anyone who claims that pigs could easily be taught and trained to do everything that companion and working dogs can do is not actually familiar with either working dogs or pigs.
(And that pigs have to WANT to do this).
Very different species with very different motivations!
I think some anti-meat activists really gloss over how humanity spent 1000s of years molding dogs + cats into companions and co-workers who pretty intuitively understand our emotions- we haven’t done this with pigs and cows.
It’s not exactly shocking that many people thus don’t want to eat pets.
I suspect that a big part of that is that pigs have been selectively bred for different traits.
There’s a definite difference between wild and domesticated animals, but there are some that take to it easier than others.
Striped skunks are oddly good pets, for example.
Raccoons… not so much.