Here is a report I contributed to that discusses the some of the challenges of converting food waste into animal feed via insects (as well as broader challenges in the insect industry). It doesn’t consider animal welfare, but I think you’ll find that the circular system promise isn’t nearly as strong as proponents say. https://refed.org/uploads/2025-food-waste-innovation-report-final.pdf

The section on insects is just a few pages so you can just share those

Interesting and provocative argument. While I don’t agree with all of it, including for the reasons some others outlined in the comments below, your piece did bring forward for me the concept that personally practicing veganism should be the minimum for those aligned with longtermism. 

For those focusing on helping the billions of beings to come who cannot speak for themselves, as you said, they should be behaving in a way that minimizes harm for the billions of beings suffering today who cannot speak for themselves. I view veganism as a moral imperative period, but especially for those thinking deeply and working toward a better future world. Thank you for raising this topic.