Memes of Production

More or less. I'm not trying to debate why eating plants is better than eating animals, it's about specifically the conflation of leftism with veganism. A leftist's opinions of solidarity can apply to humans alone, allowing exploitation of animals. It can apply to animals but not plants, as would most vegans. It can apply to plants and all living things as well, in an effort to minimize the ecological impact of all human behaviour including agricultural impacts of harvesting plants and animals, as some environmentalists would (an example is the degrowth movement to show these aren't imaginary arguments), and so I offered what could be a more positive alternative. Leftism is inclusive of all these things both broader and narrower than veganism. So my core argument is specifically that equating the two, as OP's title and image has, is wrong. I think I'd agree with most that eating plants is more moral than eating animals, but to reiterate, I'm not trying to debate what constitutes sufficiently moral consumption, because I believe that varies based on each person's judgement.