Why do most u.s. citizens only eat a few species of domesticated animals?

In a word, Americans are "spoiled". We are an affluent society, and have become accustomed to only the most palatable and best tasting entrees. Most Americans have never been hungry, they've never had to forage for food, nor had to rely on the catch of the day to survive. We turn our noses up at things that contain any degree of odor, aren't processed, and are not packaged and ready to eat. During my Navy career, I traveled the globe, and I sampled many of the foods regularly eaten in other cultures: snake, monkey, dog, kelp, squid, kangaroo, alligator, chicken embryos, cooking bananas, Baler, horse, buffalo, many kinds of bugs, scorpions, and many things that I didn't know what the Hell it was. The Navy's Survival school taught me to eat whatever was available, form grubs to leeks, and be grateful for a full belly. Americans turn up their noses at broccoli, turnips, and even artichokes. My wife likes fish...as long as it doesn't taste "Fishy" (?!) Isn't that what fish are supposed to taste like? She wouldn't eat venison (deer) if it were the last mouthful of food on the planet. (something about "Bambi") and we overcook the best steaks until they resemble pieces of dried wood, because ..we can. Many of the foods available in the markets in Chinatown, in ethnic shops etc., are quite good, but Americans know what they like: bland, sweet, deep fried, batter-coated foods, and anything that the nutritional value and original taste has been processed out of. It's akin to having access to a smorgasbord, and picking only the things you want. Abundance has made Americans "Picky" eaters and most will not even TRY a food they don't know. It's sad, but true. American's are spoiled because they have never really been truly, Starving Hungry.