I dont think anyone is disgusted by bugs per se, it has more to do with the fact that bugs have so little meat you gotta eat their bodies (including poop). Crustacians are big enough to eat just the meat.
If you look at countries which routinely eat boop (uncleaned shrimp, whole fish, and even literal mammal intestines and poop) most such cultures have no problem eating bugs whole, its even a staple. Some people just wont eat poop and instestines, and I get why its kinda disgusting both in taste and idea.