You just described exactly why it’s a useless word to throw out there when trying to make any kind of actually rational argument about human behavior. Every time someone stands up and says “natural” at this point we all already know that person does not understand nature and is likely appealing to something supernatural. So as soon as someone pulls out that tired old yarn they get ridicule from me. If they want to be taken seriously, they need to be honest with themselves and with everyone else about what they’re really about and what they really believe, not hide behind weasel-y language and pretenses of naturalism.