So it’s made of shit, right? And shit is an animal product. But barring a night of drinking or a particularly aggressive burrito, shitting does not harm the shitter; it’s beneficial and required. Also the animals in question can and do consent, does that make it vegan?
Depends i think, i mean vegans refuse to use any animal parts or labour whatsoever the goal is to remove from the chain entirely. So they could consider animal waste in this manner to be using? Or you could argue worm labour…basically everyone finds their place on the sliding spectrum of personal morality