All the ecological claims are true. But a bunch of times nuance is missing from the sustainability claims. Bugs consume way less water and thrive on basically anything, even organic waste. The last point sums up the main ecological appeal of eating insects: that growing the grain used in animal feed takes up huge water and energy resources.

But first, insect farming in its current iteration is a supplier to factory farming, not an alternative. Most insect processing is for farm feed. But let's forget that and assume it changes, and we have direct to human consumption. Now walking back to the previous paragraph.

What insects eat is critical to how much protein they produce. They can thrive on very little, but they'll produce very little protein. Most these insects get dried out, or dried and ground up. So if you swap chickens for insects, it doesn't make a difference if you're feeding them the same thing. The conversion rates are about equal. This would be a diet of corn, etc. What isn't equal is the versatility of chicken in various foods. So for sustainability, we'll need to find sustainable feed sources that plump them so, and do some genetic work on the bugs, and have a bunch of desirable foods that bugs provide the protein for. Maybe technology will bring it mainstream and scale it sustainably. Because currently, the products and most businesses I see, are virtue signaling an expensive product, and feeding their bugs the same diets as livestock. Kind of like someone producing hydrogen from natgas, not sequestering the carbon, and claiming they've made a sustainable product for ammonia, transportation, and petrochemical refining.