[sametmax]

And this rejection probably comes from the fact their are not safe to eat as is.

If you take any bug and you eat it without cooking it, you risk diseases or venom, and you'll get a hard crunch shell.

So batch preparing those little things requires deep fry, which is a quite recent addition to our life.

Besides, it was hard to safely gather or raise enough of them to nourish a village. So we did eat some of them anecdoticly, but that's all.

[koliber]

The same is true for a whole freshly slaughtered chicken, sans venom.

[sametmax]

It's much easier to figure out that one chicken is sick that one in 100 tiny bugs with an exoskeleton.

And bugs are more resistant than chickens, and can hold many dangerous agents that are dangerous for us without being sick themself.