Dani is manipulated through trauma, brainwashing and gaslighting by the tribe. I have never, for one second, believed that the choice she makes in the end of the movie comes from 100% free will, but from her going batshit crazy after the latest attempt to break her spirit. Attempt that involves her boyfriend cheating on her (from her point of view at least, he is, in fact, raped), which basically means that her losing her entire family, being kidnapped, being treated like shit (by the aforementioned boyfriend and his friends), losing any kind of acquaintance in the middle of nowhere, witnessing people's disappearance and seeing people killing themselves in front of her were things she could get over, but her boyfriend preferring another girl? No, that's too much!

Even assuming her choice is actually genuine, I have no idea how anyone could see it as a feminist positive thing: she chooses to become a murderer over cheating and because a bunch of strangers (responsible of kidnapping and murder) convince her to do it by giving her attention and a flower crown/dress and that's... a good thing?

She switches from a gaslighting boyfriend who treats her like shit to a gaslighting village who makes her a murderer and part of a cult. I am not sure how anyone can see this as a good ending for her.

I don't think the movie is man-hating, but calling it feminist or describing her as a figure of empowerment for women capable of making ponderate choices are the last things I would use to describe this movie.

I don't think the movie was made to show a feminist perspective. In fact, I think it's more a deconstruction and dark satire of the cheap feminist empowerment rethoric that is so common nowadays.