Everybody tacitly understands that vegetarians and vegans have a point, that industrial animal husbandry as currently practiced is a moral blight on this earth, but it is ridiculous to pretend not to understand the quite special place that dogs occupy in human culture and society across history. Even cultures that previously or currently consume dog meat also conceive of dogs as companions or co-laborers. The idea of the dog having a unique internal life and being part of the family is relatively new, but dogs and humans have never been far apart, far longer than any other domesticated animal.
Second, shoe-horning in vegan talking points is just as bad as shoe-horning in relatively fringe identity issues when discussing political and class issues.
Dogs only have that "special place" because we gave it to them. What's the argument here? Dogs have earned the right to not be treated like pigs?
The topic of this meme is obviously a vegan one, so I don't see how this is shoe-horning.