Even so, I think it's a big stretch. Whoever the original poster was, it's safe to assume that they have a wide spectrum of people as FB friends, with an equally wide spectrum of... perspectives, let's call them. And I can tell you from my own experience moderating forums, often the person who reports posts is NOT engaged in the conversation. In fact, I'd say that's usually the case. 🤷♀️
It sounds like you're assuming it's her simply based on her whacko beliefs, with no other proof? And I'm just thinking you might be happier if you attribute it to an unknown third party.