It probably depends on the area, but probably non-welfare related impact is going to vary by industry significantly. E.g. I imagine that insecticide use has fairly substantial environmental impacts, but that residential insecticides do not. I haven’t looked into this at all, but I’d guess there are many ways in which these industries are bad and also good (they all exist because they provide some useful benefit) besides the welfare implications.
Are there some good arguments to care about this, even for someone who feels no empathy for invertebrates?
For example the environmental impact of losing so many insects.
I think for such neglected causes focusing in secondary reasons might bring some progress.
It probably depends on the area, but probably non-welfare related impact is going to vary by industry significantly. E.g. I imagine that insecticide use has fairly substantial environmental impacts, but that residential insecticides do not. I haven’t looked into this at all, but I’d guess there are many ways in which these industries are bad and also good (they all exist because they provide some useful benefit) besides the welfare implications.