I know of no flour replacements that have literally zero carbs. Even whey protein which is a fitness supplement has more carbs. I’m sure the keto community would be super into this.

Eating insects is not weird in many cultures, and a product existing does not mean you have to eat it. Plenty of people hate tomatoes, should that be banned too? Don’t like it? Don’t eat it. You can be happy for the people that do want this.