Good luck buying a full auto, those cost more than cars and have so much red tape buying.

If you are talking about the off the store shelf civilian semi auto AR15, you can 100% hunt with it. I use mine for coyote hunting or 2/4 legged critter defense. 5.56 or 223 is a really great varmine round. Flat shooting, light recoil, super quiet with a can, cheap rifle and ammo.

Sure, it’s not as much as a challenge,but an AR15 cost the same price as a low end compound bow. Recurves are expensive. You also have to have a place to shoot and practice your bow, have the physical strength to actually shoot it.

Nothing wrong with hunting “modern” weapons. I used to bow hunt, but havent for 10 years due to basicly having to buy a whole new bow since the carbom fibre and string degrading naturally. AR15s are great (and safe) to hunt with and not a new concept.