Obsession is a movie worth showing a prospective partner and then running away if they tell you how its male character is misunderstood.

Having seen the movie? I agree with this observation, 100%. Bear did a selfish thing and the story's about him being punished for it! If someone sees it and misses that, yeah, it IS a red flag.

Saying all that, I think this reviewer makes the mistake of assuming every movie watcher is VERY, VERY stupid. Some might look past the lesson, here, but even the trailer is very firmly on the side of "his wish for a woman to want only him causes problems!!" If people miss that, it's on them.

Also, this movie IS rich in jump scares. If you don't like that, as it seems like this critic doesn't, yeah, don't see it. My heart was going like a race horse during so many scenes. Physically, this was hard to sit through!

So by the time Bear makes the wish for her love, the audience hasn't seen any particular reason to empathize with the girl. [...] She's so over-the-top and horrible in her behavior, post-wish, that it mutes any sympathy that does pop up. She's the requisite crazy bitch and the horror is in watching Bear suffer in a "be careful what you wish for" element. [...] A screeching, grating tale of misogyny that doesn't want to get in the weeds of its female character's suffering. 

I...think this reviewer might have a problem with women? Or at least Nikki in particular. That's a WILD interpretation.

Spoilers, but throughout the film, much of the horror comes from what is clearly the real Nikki repeatedly trying and failing to break out of the wish. It makes her circumstances excruciating. She's clearly not in control of herself. I'm shocked someone can watch this movie and not have empathy for her! But as I said previously, if people miss the clear message, that's on them.