This is (heh heh) a strawman. I’ve never heard anybody dismiss plants this way. The author writes about some phenomena I knew about and some I didn’t, and the point is interesting, but he only makes half an argument: vegans don’t have the unimpeachable moral highground. The problems is that he doesn’t argue that any other course of action is equal or better. And I never thought veganism was morally pure to begin with.
I believe the food web model is preferred these days.
So? The question is, what’s the best way to deal with that condition? What’s the best way for us to continue to exist while causing a minimal, or sustainable, amount of change and suffering for the rest of the planet?
I’m a vegetarian myself, so I have no problem compromising on this issue: I could go vegan, but I don’t want to. I love honey, I love cheese, and the inconvenience and the cost of going vegan are more than I want to put up with. And I think some of the arguments for veganism are silly. But I think the author here is wrong about the issue: it’s not “veganism is better because it does not harm any living things.” It’s “which diet might cause the least damage, or the most acceptable level of damage?”
Our impact is a guarantee and some level of impact has to be assumed. The question is what can we do to minimize our impact and cause the least harm. That’s assuming you believe the issue is important, and on widely varying levels, I think most people do.
So: when I eat eggplant I’m eating a living thing. No question there. Does that put veganism on par with eating meat? Is there now no difference between eating five eggplants and eating five pigs? The article sure does not convince me of that. If his point is that we shouldn’t take plant life for granted, that’s fine - but there are other counter-vegetarian arguments. It doesn’t obviate the entire issue, though.