Not trying to convince of anything, just curious: why not organs?
Many traditional food contains or are made of it: fois gras, small fried fish, gizzard, tongue pâté, sausage casing...
A reason I ear often is it's disgusting or dirty. This trend contrasts with the diversity seen in other cultural areas like music, art, and sports. While resistance to change is understandable (neither do I like change), it’s puzzling why culinary exploration has narrowed.
Contradiction disclaimer: 6 month ago I stopped eating 99% of animal products I used to, consequently my vegetable intake got much much more diverse.
In all seriousness though this is never going to happen. Bug protein is just a convenient way to explore a new food source. Especially for those who are currently experiencing malnutrition.
FYI: If you have ever eaten crab, lobster, or crayfish you have in fact already eaten bugs. These types of food used to be reserved for criminals and it was seen as cruel and unusual punishment to feed them to people in some states.