Why do you get to decide it is? The onus of proof is on the one making the claim.

I guess someone could also repeatedly bash you over the head with a tire iron and break your legs, and when criticised reply “how do you know their purpose isn’t to get hurt?”

“Well, when I approached them to hit them, they cowered in fear, asked for mercy, and tried to flee.”

“Your attempt to evoke an emotion doesn’t answer the question though. How do you know their purpose is not to be ravaged?”