Without bones, your body would just be a skin-bag full of goo on the ground. People with bones would poke at you with sticks and laugh, and you wouldn’t be able to get away. Eventually, you would probably be eaten by raccoons and feral cats, and there’s nothing you would be able to do about it.
The femur is the longest bone in the body, and it makes a great stick to poke boneless people with. Try it! Plus, there’s the added bonus of adding insult to injury, since you’re poking them with the one thing they don’t have. Stupid boneless people. Get a skeleton!