I'm quite happy to buy Harry Potter merchandise (or enjoy Roman Polanski films, or whatever), because I'm a separate art from artist extremist. Not everyone is, and that is fine, but again, I don't think "we all agree" is true. :)
For what it's worth, I thought Five Nights at Freddy's was so-so. Enjoyable to a point, but certainly nothing to jump up and down about (I've no familiarity with the game).
My take on separating art from artist is in this piece (if you're interested): https://medium.com/framerated/curate-dont-cancel-e681b184d0fb